164528901 has 20 divisors (see below), whose sum is σ = 247269792. Its totient is φ = 109020168.

The previous prime is 164528869. The next prime is 164528921. The reversal of 164528901 is 109825461.

164528901 is a `hidden beast` number, since 1 + 645 + 2 + 8 + 9 + 0 + 1 = 666.

It is not a de Polignac number, because 164528901 - 2⁵ = 164528869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164528921) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7446 + ... + 19608.

Almost surely, 2^164528901 is an apocalyptic number.

It is an amenable number.

164528901 is a deficient number, since it is larger than the sum of its proper divisors (82740891).

164528901 is a wasteful number, since it uses less digits than its factorization.

164528901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12342 (or 12333 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 164528901 is about 12826.8819671813. The cubic root of 164528901 is about 547.9581603111.

The spelling of 164528901 in words is "one hundred sixty-four million, five hundred twenty-eight thousand, nine hundred one".