64164133 has 4 divisors (see below), whose sum is σ = 69997248. Its totient is φ = 58331020.

The previous prime is 64164109. The next prime is 64164151. The reversal of 64164133 is 33146146.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 64164133 - 2⁵ = 64164101 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 (64164833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2916541 + ... + 2916562.

It is an arithmetic number, because the mean of its divisors is an integer number (17499312).

Almost surely, 2^64164133 is an apocalyptic number.

It is an amenable number.

64164133 is a deficient number, since it is larger than the sum of its proper divisors (5833115).

64164133 is a wasteful number, since it uses less digits than its factorization.

64164133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5833114.

The product of its digits is 5184, while the sum is 28.

The square root of 64164133 is about 8010.2517438592. The cubic root of 64164133 is about 400.3416518519.

The spelling of 64164133 in words is "sixty-four million, one hundred sixty-four thousand, one hundred thirty-three".