1162887156 has 36 divisors (see below), whose sum is σ = 2952157572. Its totient is φ = 385962624.

The previous prime is 1162887139. The next prime is 1162887163. The reversal of 1162887156 is 6517882611.

1162887156 is a `hidden beast` number, since 1 + 1 + 628 + 8 + 7 + 15 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 362902500 + 799984656 = 19050^2 + 28284^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60931 + ... + 77706.

It is an arithmetic number, because the mean of its divisors is an integer number (82004377).

Almost surely, 2^1162887156 is an apocalyptic number.

It is an amenable number.

1162887156 is an abundant number, since it is smaller than the sum of its proper divisors (1789270416).

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

1162887156 is a wasteful number, since it uses less digits than its factorization.

1162887156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138880 (or 138875 counting only the distinct ones).

The product of its digits is 161280, while the sum is 45.

The square root of 1162887156 is about 34101.1313008821. The cubic root of 1162887156 is about 1051.5885722665.

The spelling of 1162887156 in words is "one billion, one hundred sixty-two million, eight hundred eighty-seven thousand, one hundred fifty-six".