158597120 has 114 divisors (see below), whose sum is σ = 418381026. Its totient is φ = 57671680.

The previous prime is 158597093. The next prime is 158597137. The reversal of 158597120 is 21795851.

It can be written as a sum of positive squares in only one way, i.e., 126877696 + 31719424 = 11264^2 + 5632^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14417915 + ... + 14417925.

It is an arithmetic number, because the mean of its divisors is an integer number (3670009).

Almost surely, 2^158597120 is an apocalyptic number.

158597120 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 158597120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209190513).

158597120 is an abundant number, since it is smaller than the sum of its proper divisors (259783906).

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

158597120 is an frugal number, since it uses more digits than its factorization.

158597120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 158597120 is about 12593.5348492788. The cubic root of 158597120 is about 541.2921957194.

The spelling of 158597120 in words is "one hundred fifty-eight million, five hundred ninety-seven thousand, one hundred twenty".