158915020 has 24 divisors (see below), whose sum is σ = 364060368. Its totient is φ = 57787200.

The previous prime is 158915017. The next prime is 158915023. The reversal of 158915020 is 20519851.

It is an interprime number because it is at equal distance from previous prime (158915017) and next prime (158915023).

It is not an unprimeable number, because it can be changed into a prime (158915023) 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, 360951 + ... + 361390.

It is an arithmetic number, because the mean of its divisors is an integer number (15169182).

Almost surely, 2^158915020 is an apocalyptic number.

158915020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158915020 is an abundant number, since it is smaller than the sum of its proper divisors (205145348).

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

158915020 is a wasteful number, since it uses less digits than its factorization.

158915020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722361 (or 722359 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 158915020 is about 12606.1500863666. The cubic root of 158915020 is about 541.6536187258.

The spelling of 158915020 in words is "one hundred fifty-eight million, nine hundred fifteen thousand, twenty".