158018520 has 128 divisors (see below), whose sum is σ = 526176000. Its totient is φ = 37639680.

The previous prime is 158018513. The next prime is 158018569. The reversal of 158018520 is 25810851.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76866 + ... + 78894.

It is an arithmetic number, because the mean of its divisors is an integer number (4110750).

Almost surely, 2^158018520 is an apocalyptic number.

158018520 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 158018520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263088000).

158018520 is an abundant number, since it is smaller than the sum of its proper divisors (368157480).

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

158018520 is a wasteful number, since it uses less digits than its factorization.

158018520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 158018520 is about 12570.5417544352. The cubic root of 158018520 is about 540.6331393965.

It can be divided in two parts, 1580 and 18520, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 158018520 in words is "one hundred fifty-eight million, eighteen thousand, five hundred twenty".