164772213 has 16 divisors (see below), whose sum is σ = 222437376. Its totient is φ = 108486000.

The previous prime is 164772203. The next prime is 164772217. The reversal of 164772213 is 312277461.

It is not a de Polignac number, because 164772213 - 2⁶ = 164772149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164772217) 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, 94770 + ... + 96492.

It is an arithmetic number, because the mean of its divisors is an integer number (13902336).

Almost surely, 2^164772213 is an apocalyptic number.

It is an amenable number.

164772213 is a deficient number, since it is larger than the sum of its proper divisors (57665163).

164772213 is a wasteful number, since it uses less digits than its factorization.

164772213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104.

The product of its digits is 14112, while the sum is 33.

The square root of 164772213 is about 12836.3629194566. The cubic root of 164772213 is about 548.2281415058.

The spelling of 164772213 in words is "one hundred sixty-four million, seven hundred seventy-two thousand, two hundred thirteen".