113469581 has 2 divisors, whose sum is σ = 113469582. Its totient is φ = 113469580.

The previous prime is 113469569. The next prime is 113469583. The reversal of 113469581 is 185964311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101324356 + 12145225 = 10066^2 + 3485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113469581 is a prime.

It is a super-2 number, since 2×113469581² = 25750691624631122, which contains 22 as substring.

Together with 113469583, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 113469581 parts by 15064 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113469583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56734790 + 56734791.

It is an arithmetic number, because the mean of its divisors is an integer number (56734791).

Almost surely, 2^113469581 is an apocalyptic number.

It is an amenable number.

113469581 is a deficient number, since it is larger than the sum of its proper divisors (1).

113469581 is an equidigital number, since it uses as much as digits as its factorization.

113469581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 38.

The square root of 113469581 is about 10652.2101462560. The cubic root of 113469581 is about 484.1275717837.

The spelling of 113469581 in words is "one hundred thirteen million, four hundred sixty-nine thousand, five hundred eighty-one".