115143665 has 16 divisors (see below), whose sum is σ = 170059008. Its totient is φ = 72881856.

The previous prime is 115143649. The next prime is 115143683. The reversal of 115143665 is 566341511.

It is a cyclic number.

It is not a de Polignac number, because 115143665 - 2⁴ = 115143649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126077 + ... + 126986.

It is an arithmetic number, because the mean of its divisors is an integer number (10628688).

Almost surely, 2^115143665 is an apocalyptic number.

It is an amenable number.

115143665 is a deficient number, since it is larger than the sum of its proper divisors (54915343).

115143665 is a wasteful number, since it uses less digits than its factorization.

115143665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253088.

The product of its digits is 10800, while the sum is 32.

The square root of 115143665 is about 10730.5016192161. The cubic root of 115143665 is about 486.4968317021.

The spelling of 115143665 in words is "one hundred fifteen million, one hundred forty-three thousand, six hundred sixty-five".