1159072865 has 16 divisors (see below), whose sum is σ = 1485952320. Its totient is φ = 865339200.

The previous prime is 1159072819. The next prime is 1159072883. The reversal of 1159072865 is 5682709511.

It is not a de Polignac number, because 1159072865 - 2¹² = 1159068769 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84686 + ... + 97415.

It is an arithmetic number, because the mean of its divisors is an integer number (92872020).

Almost surely, 2^1159072865 is an apocalyptic number.

It is an amenable number.

1159072865 is a deficient number, since it is larger than the sum of its proper divisors (326879455).

1159072865 is a wasteful number, since it uses less digits than its factorization.

1159072865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182192.

The product of its (nonzero) digits is 151200, while the sum is 44.

The square root of 1159072865 is about 34045.1592006852. The cubic root of 1159072865 is about 1050.4375697035.

The spelling of 1159072865 in words is "one billion, one hundred fifty-nine million, seventy-two thousand, eight hundred sixty-five".