113504137 has 2 divisors, whose sum is σ = 113504138. Its totient is φ = 113504136.

The previous prime is 113504117. The next prime is 113504143. The reversal of 113504137 is 731405311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77070841 + 36433296 = 8779^2 + 6036^2 .

It is a cyclic number.

It is not a de Polignac number, because 113504137 - 2⁷ = 113504009 is a prime.

It is a super-2 number, since 2×113504137² = 25766378232229538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113504117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56752068 + 56752069.

It is an arithmetic number, because the mean of its divisors is an integer number (56752069).

Almost surely, 2^113504137 is an apocalyptic number.

It is an amenable number.

113504137 is a deficient number, since it is larger than the sum of its proper divisors (1).

113504137 is an equidigital number, since it uses as much as digits as its factorization.

113504137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 113504137 is about 10653.8320335924. The cubic root of 113504137 is about 484.1767121619.

Adding to 113504137 its reverse (731405311), we get a palindrome (844909448).

The spelling of 113504137 in words is "one hundred thirteen million, five hundred four thousand, one hundred thirty-seven".