164491532 has 6 divisors (see below), whose sum is σ = 287860188. Its totient is φ = 82245764.

The previous prime is 164491519. The next prime is 164491571. The reversal of 164491532 is 235194461.

164491532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 164491492 and 164491501.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20561438 + ... + 20561445.

It is an arithmetic number, because the mean of its divisors is an integer number (47976698).

Almost surely, 2^164491532 is an apocalyptic number.

It is an amenable number.

164491532 is a deficient number, since it is larger than the sum of its proper divisors (123368656).

164491532 is a wasteful number, since it uses less digits than its factorization.

164491532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41122887 (or 41122885 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 164491532 is about 12825.4252171224. The cubic root of 164491532 is about 547.9166717563.

The spelling of 164491532 in words is "one hundred sixty-four million, four hundred ninety-one thousand, five hundred thirty-two".