164927272 has 8 divisors (see below), whose sum is σ = 309238650. Its totient is φ = 82463632.

The previous prime is 164927261. The next prime is 164927281. The reversal of 164927272 is 272729461.

It can be written as a sum of positive squares in only one way, i.e., 123787876 + 41139396 = 11126^2 + 6414^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10307947 + ... + 10307962.

Almost surely, 2^164927272 is an apocalyptic number.

It is an amenable number.

164927272 is a deficient number, since it is larger than the sum of its proper divisors (144311378).

164927272 is a wasteful number, since it uses less digits than its factorization.

164927272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20615915 (or 20615911 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 164927272 is about 12842.4013330841. The cubic root of 164927272 is about 548.4000577415.

The spelling of 164927272 in words is "one hundred sixty-four million, nine hundred twenty-seven thousand, two hundred seventy-two".