158139838224 has 135 divisors (see below), whose sum is σ = 457737145749. Its totient is φ = 50965130880.

The previous prime is 158139838189. The next prime is 158139838253. The reversal of 158139838224 is 422838931851.

The square root of 158139838224 is 397668.

It is a perfect power (a square), and thus also a powerful number.

158139838224 is a `hidden beast` number, since 1 + 581 + 3 + 9 + 8 + 38 + 2 + 24 = 666.

158139838224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 73947012624 + 84192825600 = 271932^2 + 290160^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 147931962 + ... + 147933030.

Almost surely, 2^158139838224 is an apocalyptic number.

158139838224 is the 397668-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158139838224

158139838224 is an abundant number, since it is smaller than the sum of its proper divisors (299597307525).

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

158139838224 is an equidigital number, since it uses as much as digits as its factorization.

158139838224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 1105 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 158139838224 in words is "one hundred fifty-eight billion, one hundred thirty-nine million, eight hundred thirty-eight thousand, two hundred twenty-four".