158685156 has 240 divisors, whose sum is σ = 510856192. Its totient is φ = 41990400.

The previous prime is 158685151. The next prime is 158685181. The reversal of 158685156 is 651586851.

It is not an unprimeable number, because it can be changed into a prime (158685151) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2601366 + ... + 2601426.

Almost surely, 2^158685156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158685156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255428096).

158685156 is an abundant number, since it is smaller than the sum of its proper divisors (352171036).

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

158685156 is a wasteful number, since it uses less digits than its factorization.

158685156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 141 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The square root of 158685156 is about 12597.0296498818. The cubic root of 158685156 is about 541.3923328575.

The spelling of 158685156 in words is "one hundred fifty-eight million, six hundred eighty-five thousand, one hundred fifty-six".