158494272 has 28 divisors (see below), whose sum is σ = 419349936. Its totient is φ = 52831360.

The previous prime is 158494253. The next prime is 158494277. The reversal of 158494272 is 272494851.

It is not an unprimeable number, because it can be changed into a prime (158494277) 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, 412554 + ... + 412937.

Almost surely, 2^158494272 is an apocalyptic number.

158494272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158494272 is an abundant number, since it is smaller than the sum of its proper divisors (260855664).

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

158494272 is an equidigital number, since it uses as much as digits as its factorization.

158494272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825506 (or 825496 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 158494272 is about 12589.4508220176. The cubic root of 158494272 is about 541.1751636278.

It can be divided in two parts, 158494 and 272, that added together give a triangular number (158766 = T₅₆₃).

The spelling of 158494272 in words is "one hundred fifty-eight million, four hundred ninety-four thousand, two hundred seventy-two".