164772015 has 16 divisors (see below), whose sum is σ = 266813568. Its totient is φ = 86818976.

The previous prime is 164772011. The next prime is 164772017. The reversal of 164772015 is 510277461.

It is a cyclic number.

It is not a de Polignac number, because 164772015 - 2² = 164772011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164772011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64929 + ... + 67418.

It is an arithmetic number, because the mean of its divisors is an integer number (16675848).

Almost surely, 2^164772015 is an apocalyptic number.

164772015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164772015 is a deficient number, since it is larger than the sum of its proper divisors (102041553).

164772015 is a wasteful number, since it uses less digits than its factorization.

164772015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132438.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 164772015 is about 12836.3552069892. The cubic root of 164772015 is about 548.2279219113.

The spelling of 164772015 in words is "one hundred sixty-four million, seven hundred seventy-two thousand, fifteen".