158861892 has 24 divisors (see below), whose sum is σ = 423631936. Its totient is φ = 45389088.

The previous prime is 158861827. The next prime is 158861893. The reversal of 158861892 is 298168851.

It is not an unprimeable number, because it can be changed into a prime (158861893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945523 + ... + 945690.

Almost surely, 2^158861892 is an apocalyptic number.

158861892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158861892 is an abundant number, since it is smaller than the sum of its proper divisors (264770044).

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

158861892 is a wasteful number, since it uses less digits than its factorization.

158861892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891227 (or 1891225 counting only the distinct ones).

The product of its digits is 276480, while the sum is 48.

The square root of 158861892 is about 12604.0426847897. The cubic root of 158861892 is about 541.5932506521.

The spelling of 158861892 in words is "one hundred fifty-eight million, eight hundred sixty-one thousand, eight hundred ninety-two".