1165015115 has 64 divisors (see below), whose sum is σ = 1707264000. Its totient is φ = 753338880.

The previous prime is 1165015099. The next prime is 1165015139. The reversal of 1165015115 is 5115105611.

It is not a de Polignac number, because 1165015115 - 2⁴ = 1165015099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1120766 + ... + 1121804.

It is an arithmetic number, because the mean of its divisors is an integer number (26676000).

Almost surely, 2^1165015115 is an apocalyptic number.

1165015115 is a deficient number, since it is larger than the sum of its proper divisors (542248885).

1165015115 is a wasteful number, since it uses less digits than its factorization.

1165015115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 750, while the sum is 26.

The square root of 1165015115 is about 34132.3177501909. The cubic root of 1165015115 is about 1052.2296129158.

The spelling of 1165015115 in words is "one billion, one hundred sixty-five million, fifteen thousand, one hundred fifteen".