158520 has 32 divisors (see below), whose sum is σ = 475920. Its totient is φ = 42240.

The previous prime is 158519. The next prime is 158527. The reversal of 158520 is 25851.

158520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 158520.

It is not an unprimeable number, because it can be changed into a prime (158527) 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, 541 + ... + 780.

2¹⁵⁸⁵²⁰ is an apocalyptic number.

158520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158520 is an abundant number, since it is smaller than the sum of its proper divisors (317400).

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

158520 is a wasteful number, since it uses less digits than its factorization.

158520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 158520 is about 398.1457019735. The cubic root of 158520 is about 54.1204444605.

The spelling of 158520 in words is "one hundred fifty-eight thousand, five hundred twenty".