150531556 has 12 divisors (see below), whose sum is σ = 301063168. Its totient is φ = 64513512.

The previous prime is 150531551. The next prime is 150531581. The reversal of 150531556 is 655135051.

150531556 is an admirable number.

It is a super-2 number, since 2×150531556² = 45319498703562272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (150531551) 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, 2688036 + ... + 2688091.

Almost surely, 2^150531556 is an apocalyptic number.

It is an amenable number.

150531556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

150531556 is a wasteful number, since it uses less digits than its factorization.

150531556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5376138 (or 5376136 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 31.

The square root of 150531556 is about 12269.1302055199. The cubic root of 150531556 is about 531.9561697171.

The spelling of 150531556 in words is "one hundred fifty million, five hundred thirty-one thousand, five hundred fifty-six".