158902272 has 144 divisors (see below), whose sum is σ = 473365620. Its totient is φ = 51314688.

The previous prime is 158902241. The next prime is 158902297. The reversal of 158902272 is 272209851.

158902272 is a `hidden beast` number, since 1 + 589 + 0 + 2 + 2 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 158155776 + 746496 = 12576^2 + 864^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 681868 + ... + 682100.

Almost surely, 2^158902272 is an apocalyptic number.

158902272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158902272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236682810).

158902272 is an abundant number, since it is smaller than the sum of its proper divisors (314463348).

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

158902272 is a wasteful number, since it uses less digits than its factorization.

158902272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 158902272 is about 12605.6444500073. The cubic root of 158902272 is about 541.6391347058.

The spelling of 158902272 in words is "one hundred fifty-eight million, nine hundred two thousand, two hundred seventy-two".