158000000 has 112 divisors (see below), whose sum is σ = 398432400. Its totient is φ = 62400000.

The previous prime is 157999999. The next prime is 158000021. The reversal of 158000000 is 851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1999961 + ... + 2000039.

Almost surely, 2^158000000 is an apocalyptic number.

158000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199216200).

158000000 is an abundant number, since it is smaller than the sum of its proper divisors (240432400).

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

158000000 is an frugal number, since it uses more digits than its factorization.

158000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 158000000 is about 12569.8050899765. The cubic root of 158000000 is about 540.6120175750.

Adding to 158000000 its reverse (851), we get a palindrome (158000851).

The spelling of 158000000 in words is "one hundred fifty-eight million", and thus it is an aban number.