115651957 has 4 divisors (see below), whose sum is σ = 116418016. Its totient is φ = 114885900.

The previous prime is 115651937. The next prime is 115651967. The reversal of 115651957 is 759156511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 759156511 = 6367 ⋅119233.

It is a cyclic number.

It is not a de Polignac number, because 115651957 - 2²³ = 107263349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115651937) 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, 382803 + ... + 383104.

It is an arithmetic number, because the mean of its divisors is an integer number (29104504).

Almost surely, 2^115651957 is an apocalyptic number.

It is an amenable number.

115651957 is a deficient number, since it is larger than the sum of its proper divisors (766059).

115651957 is an equidigital number, since it uses as much as digits as its factorization.

115651957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766058.

The product of its digits is 47250, while the sum is 40.

The square root of 115651957 is about 10754.1599857915. The cubic root of 115651957 is about 487.2116473143.

The spelling of 115651957 in words is "one hundred fifteen million, six hundred fifty-one thousand, nine hundred fifty-seven".