164772263 has 8 divisors (see below), whose sum is σ = 165925632. Its totient is φ = 163623096.

The previous prime is 164772233. The next prime is 164772319. The reversal of 164772263 is 362277461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164772263 - 2¹⁰ = 164771239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164772203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123506 + ... + 124832.

It is an arithmetic number, because the mean of its divisors is an integer number (20740704).

Almost surely, 2^164772263 is an apocalyptic number.

164772263 is a deficient number, since it is larger than the sum of its proper divisors (1153369).

164772263 is a wasteful number, since it uses less digits than its factorization.

164772263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101.

The product of its digits is 84672, while the sum is 38.

The square root of 164772263 is about 12836.3648670486. The cubic root of 164772263 is about 548.2281969590.

The spelling of 164772263 in words is "one hundred sixty-four million, seven hundred seventy-two thousand, two hundred sixty-three".