115807031 has 2 divisors, whose sum is σ = 115807032. Its totient is φ = 115807030.

The previous prime is 115806997. The next prime is 115807037. The reversal of 115807031 is 130708511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115807031 is a prime.

It is a super-2 number, since 2×115807031² = 26822536858069922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115807037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57903515 + 57903516.

It is an arithmetic number, because the mean of its divisors is an integer number (57903516).

Almost surely, 2^115807031 is an apocalyptic number.

115807031 is a deficient number, since it is larger than the sum of its proper divisors (1).

115807031 is an equidigital number, since it uses as much as digits as its factorization.

115807031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 115807031 is about 10761.3675246225. The cubic root of 115807031 is about 487.4293122140.

The spelling of 115807031 in words is "one hundred fifteen million, eight hundred seven thousand, thirty-one".