Search a number
-
+
1249741 is a prime number
BaseRepresentation
bin100110001000111001101
32100111022201
410301013031
5304442431
642441501
713423363
oct4610715
92314281
101249741
11783a49
12503291
13349abc
14247633
1519a461
hex1311cd

1249741 has 2 divisors, whose sum is σ = 1249742. Its totient is φ = 1249740.

The previous prime is 1249739. The next prime is 1249747. The reversal of 1249741 is 1479421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 687241 + 562500 = 829^2 + 750^2 .

It is a cyclic number.

It is not a de Polignac number, because 1249741 - 21 = 1249739 is a prime.

Together with 1249739, it forms a pair of twin primes.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1249747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624870 + 624871.

It is an arithmetic number, because the mean of its divisors is an integer number (624871).

21249741 is an apocalyptic number.

It is an amenable number.

1249741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249741 is an equidigital number, since it uses as much as digits as its factorization.

1249741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 1249741 is about 1117.9181544281. The cubic root of 1249741 is about 107.7142940066.

The spelling of 1249741 in words is "one million, two hundred forty-nine thousand, seven hundred forty-one".