113497537 has 4 divisors (see below), whose sum is σ = 116565076. Its totient is φ = 110430000.

The previous prime is 113497523. The next prime is 113497543. The reversal of 113497537 is 735794311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90801841 + 22695696 = 9529^2 + 4764^2 .

It is a cyclic number.

It is not a de Polignac number, because 113497537 - 2⁷ = 113497409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113497537.

It is not an unprimeable number, because it can be changed into a prime (113497567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533714 + ... + 1533787.

It is an arithmetic number, because the mean of its divisors is an integer number (29141269).

Almost surely, 2^113497537 is an apocalyptic number.

It is an amenable number.

113497537 is a deficient number, since it is larger than the sum of its proper divisors (3067539).

113497537 is an equidigital number, since it uses as much as digits as its factorization.

113497537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067538.

The product of its digits is 79380, while the sum is 40.

The square root of 113497537 is about 10653.5222813866. The cubic root of 113497537 is about 484.1673273990.

The spelling of 113497537 in words is "one hundred thirteen million, four hundred ninety-seven thousand, five hundred thirty-seven".