158938772 has 24 divisors (see below), whose sum is σ = 284712960. Its totient is φ = 77600160.

The previous prime is 158938721. The next prime is 158938783. The reversal of 158938772 is 277839851.

158938772 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 158938772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123629 + ... + 124907.

It is an arithmetic number, because the mean of its divisors is an integer number (11863040).

Almost surely, 2^158938772 is an apocalyptic number.

It is an amenable number.

158938772 is a deficient number, since it is larger than the sum of its proper divisors (125774188).

158938772 is a wasteful number, since it uses less digits than its factorization.

158938772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991 (or 1989 counting only the distinct ones).

The product of its digits is 846720, while the sum is 50.

The square root of 158938772 is about 12607.0921310190. The cubic root of 158938772 is about 541.6806032022.

The spelling of 158938772 in words is "one hundred fifty-eight million, nine hundred thirty-eight thousand, seven hundred seventy-two".