1159205878 has 16 divisors (see below), whose sum is σ = 1812335616. Its totient is φ = 555457320.

The previous prime is 1159205869. The next prime is 1159205921. The reversal of 1159205878 is 8785029511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84376 + ... + 97147.

It is an arithmetic number, because the mean of its divisors is an integer number (113270976).

Almost surely, 2^1159205878 is an apocalyptic number.

1159205878 is a deficient number, since it is larger than the sum of its proper divisors (653129738).

1159205878 is a wasteful number, since it uses less digits than its factorization.

1159205878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181659.

The product of its (nonzero) digits is 201600, while the sum is 46.

The square root of 1159205878 is about 34047.1126235398. The cubic root of 1159205878 is about 1050.4777502398.

The spelling of 1159205878 in words is "one billion, one hundred fifty-nine million, two hundred five thousand, eight hundred seventy-eight".