152164521 has 32 divisors (see below), whose sum is σ = 242380800. Its totient is φ = 94044240.

The previous prime is 152164517. The next prime is 152164531. The reversal of 152164521 is 125461251.

152164521 is a `hidden beast` number, since 15 + 2 + 1 + 645 + 2 + 1 = 666.

It is not a de Polignac number, because 152164521 - 2² = 152164517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (152164531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20956 + ... + 27266.

It is an arithmetic number, because the mean of its divisors is an integer number (7574400).

Almost surely, 2^152164521 is an apocalyptic number.

It is an amenable number.

152164521 is a deficient number, since it is larger than the sum of its proper divisors (90216279).

152164521 is a wasteful number, since it uses less digits than its factorization.

152164521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6386 (or 6380 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 152164521 is about 12335.4984090632. The cubic root of 152164521 is about 533.8728077323.

The spelling of 152164521 in words is "one hundred fifty-two million, one hundred sixty-four thousand, five hundred twenty-one".