158538140 has 12 divisors (see below), whose sum is σ = 332930136. Its totient is φ = 63415248.

The previous prime is 158538139. The next prime is 158538143. The reversal of 158538140 is 41835851.

158538140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 158538140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158538143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3963434 + ... + 3963473.

It is an arithmetic number, because the mean of its divisors is an integer number (27744178).

Almost surely, 2^158538140 is an apocalyptic number.

158538140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158538140 is an abundant number, since it is smaller than the sum of its proper divisors (174391996).

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

158538140 is a wasteful number, since it uses less digits than its factorization.

158538140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7926916 (or 7926914 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 158538140 is about 12591.1929538070. The cubic root of 158538140 is about 541.2250877919.

The spelling of 158538140 in words is "one hundred fifty-eight million, five hundred thirty-eight thousand, one hundred forty".