151531564 has 12 divisors (see below), whose sum is σ = 269527888. Its totient is φ = 74523600.

The previous prime is 151531519. The next prime is 151531577. The reversal of 151531564 is 465135151.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310272 + ... + 310759.

Almost surely, 2^151531564 is an apocalyptic number.

It is an amenable number.

151531564 is a deficient number, since it is larger than the sum of its proper divisors (117996324).

151531564 is a wasteful number, since it uses less digits than its factorization.

151531564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621096 (or 621094 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 151531564 is about 12309.8157581663. The cubic root of 151531564 is about 533.1315307697.

The spelling of 151531564 in words is "one hundred fifty-one million, five hundred thirty-one thousand, five hundred sixty-four".