158517980 has 24 divisors (see below), whose sum is σ = 337859088. Its totient is φ = 62460288.

The previous prime is 158517949. The next prime is 158518021. The reversal of 158517980 is 89715851.

It is a happy number.

158517980 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

158517980 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57809 + ... + 60488.

It is an arithmetic number, because the mean of its divisors is an integer number (14077462).

Almost surely, 2^158517980 is an apocalyptic number.

158517980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158517980 is an abundant number, since it is smaller than the sum of its proper divisors (179341108).

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

158517980 is a wasteful number, since it uses less digits than its factorization.

158517980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118373 (or 118371 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 44.

The square root of 158517980 is about 12590.3923687866. The cubic root of 158517980 is about 541.2021457619.

The spelling of 158517980 in words is "one hundred fifty-eight million, five hundred seventeen thousand, nine hundred eighty".