151581264 has 40 divisors (see below), whose sum is σ = 401140992. Its totient is φ = 49294080.

The previous prime is 151581263. The next prime is 151581271. The reversal of 151581264 is 462185151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151581263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36544 + ... + 40479.

Almost surely, 2^151581264 is an apocalyptic number.

It is an amenable number.

151581264 is an abundant number, since it is smaller than the sum of its proper divisors (249559728).

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

151581264 is a wasteful number, since it uses less digits than its factorization.

151581264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77075 (or 77069 counting only the distinct ones).

The product of its digits is 9600, while the sum is 33.

The square root of 151581264 is about 12311.8343068773. The cubic root of 151581264 is about 533.1898106864.

The spelling of 151581264 in words is "one hundred fifty-one million, five hundred eighty-one thousand, two hundred sixty-four".