158181156 has 72 divisors (see below), whose sum is σ = 481033280. Its totient is φ = 42814656.

The previous prime is 158181139. The next prime is 158181181. The reversal of 158181156 is 651181851.

158181156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×158181156² = 50042556226992672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 158181156.

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, 11731 + ... + 21306.

Almost surely, 2^158181156 is an apocalyptic number.

It is an amenable number.

158181156 is an abundant number, since it is smaller than the sum of its proper divisors (322852124).

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

158181156 is a wasteful number, since it uses less digits than its factorization.

158181156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33073 (or 33068 counting only the distinct ones).

The product of its digits is 9600, while the sum is 36.

The square root of 158181156 is about 12577.0090244064. The cubic root of 158181156 is about 540.8185528178.

The spelling of 158181156 in words is "one hundred fifty-eight million, one hundred eighty-one thousand, one hundred fifty-six".