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1129441 is a prime number
BaseRepresentation
bin100010011101111100001
32010101022011
410103233201
5242120231
640112521
712412555
oct4235741
92111264
101129441
11701625
12465741
13307111
14215865
151749b1
hex113be1

1129441 has 2 divisors, whose sum is σ = 1129442. Its totient is φ = 1129440.

The previous prime is 1129439. The next prime is 1129459. The reversal of 1129441 is 1449211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 646416 + 483025 = 804^2 + 695^2 .

It is an emirp because it is prime and its reverse (1449211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1129441 - 21 = 1129439 is a prime.

Together with 1129439, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1129741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564720 + 564721.

It is an arithmetic number, because the mean of its divisors is an integer number (564721).

21129441 is an apocalyptic number.

It is an amenable number.

1129441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129441 is an equidigital number, since it uses as much as digits as its factorization.

1129441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 22.

The square root of 1129441 is about 1062.7516172653. The cubic root of 1129441 is about 104.1408655743.

The spelling of 1129441 in words is "one million, one hundred twenty-nine thousand, four hundred forty-one".