113391937 has 8 divisors (see below), whose sum is σ = 117227880. Its totient is φ = 109607040.

The previous prime is 113391931. The next prime is 113391947. The reversal of 113391937 is 739193311.

It can be written as a sum of positive squares in 4 ways, for example, as 1962801 + 111429136 = 1401^2 + 10556^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113391937 - 2⁷ = 113391809 is a prime.

It is a super-2 number, since 2×113391937² = 25715462753223938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113391896 and 113391905.

It is not an unprimeable number, because it can be changed into a prime (113391931) 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 in 7 ways as a sum of consecutive naturals, for example, 8218 + ... + 17155.

It is an arithmetic number, because the mean of its divisors is an integer number (14653485).

Almost surely, 2^113391937 is an apocalyptic number.

It is an amenable number.

113391937 is a deficient number, since it is larger than the sum of its proper divisors (3835943).

113391937 is a wasteful number, since it uses less digits than its factorization.

113391937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25523.

The product of its digits is 15309, while the sum is 37.

The square root of 113391937 is about 10648.5650206965. The cubic root of 113391937 is about 484.0171216879.

The spelling of 113391937 in words is "one hundred thirteen million, three hundred ninety-one thousand, nine hundred thirty-seven".