Search a number
-
+
1074581 is a prime number
BaseRepresentation
bin100000110010110010101
32000121001022
410012112111
5233341311
635010525
712063614
oct4062625
92017038
101074581
11674392
12439a45
132b8161
141dd87b
151635db
hex106595

1074581 has 2 divisors, whose sum is σ = 1074582. Its totient is φ = 1074580.

The previous prime is 1074559. The next prime is 1074607. The reversal of 1074581 is 1854701.

It is an a-pointer prime, because the next prime (1074607) can be obtained adding 1074581 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 625681 + 448900 = 791^2 + 670^2 .

It is an emirp because it is prime and its reverse (1854701) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1074581 is a prime.

It is a super-2 number, since 2×10745812 = 2309448651122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is equal to p83870 and since 1074581 and 83870 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1074581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1074511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537290 + 537291.

It is an arithmetic number, because the mean of its divisors is an integer number (537291).

21074581 is an apocalyptic number.

It is an amenable number.

1074581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074581 is an equidigital number, since it uses as much as digits as its factorization.

1074581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1074581 is about 1036.6199882310. The cubic root of 1074581 is about 102.4266697400.

Adding to 1074581 its product of nonzero digits (1120), we get a palindrome (1075701).

The spelling of 1074581 in words is "one million, seventy-four thousand, five hundred eighty-one".