1115978136 has 96 divisors (see below), whose sum is σ = 3495144240. Its totient is φ = 294319872.

The previous prime is 1115978119. The next prime is 1115978159. The reversal of 1115978136 is 6318795111.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21211 + ... + 51786.

Almost surely, 2^1115978136 is an apocalyptic number.

It is an amenable number.

1115978136 is an abundant number, since it is smaller than the sum of its proper divisors (2379166104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115978136 is a wasteful number, since it uses less digits than its factorization.

1115978136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73033 (or 73022 counting only the distinct ones).

The product of its digits is 45360, while the sum is 42.

The square root of 1115978136 is about 33406.2589345170. The cubic root of 1115978136 is about 1037.2542636860.

The spelling of 1115978136 in words is "one billion, one hundred fifteen million, nine hundred seventy-eight thousand, one hundred thirty-six".