164730772 has 12 divisors (see below), whose sum is σ = 288378720. Its totient is φ = 82336856.

The previous prime is 164730763. The next prime is 164730781. The reversal of 164730772 is 277037461.

164730772 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (164730763) and next prime (164730781).

It is a congruent 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, 10953 + ... + 21199.

It is an arithmetic number, because the mean of its divisors is an integer number (24031560).

Almost surely, 2^164730772 is an apocalyptic number.

It is an amenable number.

164730772 is a deficient number, since it is larger than the sum of its proper divisors (123647948).

164730772 is a wasteful number, since it uses less digits than its factorization.

164730772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14270 (or 14268 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 164730772 is about 12834.7486146009. The cubic root of 164730772 is about 548.1821769852.

The spelling of 164730772 in words is "one hundred sixty-four million, seven hundred thirty thousand, seven hundred seventy-two".