158393772 has 48 divisors (see below), whose sum is σ = 411489120. Its totient is φ = 52690176.

The previous prime is 158393731. The next prime is 158393813. The reversal of 158393772 is 277393851.

It is a happy number.

158393772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (158393731) and next prime (158393813).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65448 + ... + 67824.

It is an arithmetic number, because the mean of its divisors is an integer number (8572690).

Almost surely, 2^158393772 is an apocalyptic number.

158393772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158393772 is an abundant number, since it is smaller than the sum of its proper divisors (253095348).

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

158393772 is a wasteful number, since it uses less digits than its factorization.

158393772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007 (or 2999 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 158393772 is about 12585.4587520678. The cubic root of 158393772 is about 541.0607544381.

The spelling of 158393772 in words is "one hundred fifty-eight million, three hundred ninety-three thousand, seven hundred seventy-two".