158133312 has 84 divisors (see below), whose sum is σ = 455339196. Its totient is φ = 52469760.

The previous prime is 158133307. The next prime is 158133323. The reversal of 158133312 is 213331851.

It can be written as a sum of positive squares in 2 ways, for example, as 130507776 + 27625536 = 11424^2 + 5256^2 .

It is a super-2 number, since 2×158133312² = 50012288728178688, which contains 22 as substring.

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, 161368 + ... + 162344.

Almost surely, 2^158133312 is an apocalyptic number.

158133312 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 158133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227669598).

158133312 is an abundant number, since it is smaller than the sum of its proper divisors (297205884).

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

158133312 is a wasteful number, since it uses less digits than its factorization.

158133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1263 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 158133312 is about 12575.1068385123. The cubic root of 158133312 is about 540.7640213918.

The spelling of 158133312 in words is "one hundred fifty-eight million, one hundred thirty-three thousand, three hundred twelve".