115911651 has 16 divisors (see below), whose sum is σ = 163918080. Its totient is φ = 72700320.

The previous prime is 115911643. The next prime is 115911667. The reversal of 115911651 is 156119511.

It is not a de Polignac number, because 115911651 - 2³ = 115911643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115911641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9561 + ... + 17978.

It is an arithmetic number, because the mean of its divisors is an integer number (10244880).

Almost surely, 2^115911651 is an apocalyptic number.

115911651 is a deficient number, since it is larger than the sum of its proper divisors (48006429).

115911651 is a wasteful number, since it uses less digits than its factorization.

115911651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27626.

The product of its digits is 1350, while the sum is 30.

The square root of 115911651 is about 10766.2273336578. The cubic root of 115911651 is about 487.5760491483.

The spelling of 115911651 in words is "one hundred fifteen million, nine hundred eleven thousand, six hundred fifty-one".