158612238 has 24 divisors (see below), whose sum is σ = 344205576. Its totient is φ = 52786800.

The previous prime is 158612191. The next prime is 158612239. The reversal of 158612238 is 832216851.

It is a happy number.

158612238 is a `hidden beast` number, since 1 + 5 + 8 + 612 + 2 + 38 = 666.

158612238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158612239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5233 + ... + 18563.

It is an arithmetic number, because the mean of its divisors is an integer number (14341899).

Almost surely, 2^158612238 is an apocalyptic number.

158612238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

158612238 is an abundant number, since it is smaller than the sum of its proper divisors (185593338).

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

158612238 is a wasteful number, since it uses less digits than its factorization.

158612238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14000 (or 13997 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 158612238 is about 12594.1350635921. The cubic root of 158612238 is about 541.3093944247.

It can be divided in two parts, 1586 and 12238, that added together give a cube (13824 = 24³).

The spelling of 158612238 in words is "one hundred fifty-eight million, six hundred twelve thousand, two hundred thirty-eight".