64164527 has 4 divisors (see below), whose sum is σ = 73330896. Its totient is φ = 54998160.

The previous prime is 64164521. The next prime is 64164553. The reversal of 64164527 is 72546146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72546146 = 2 ⋅36273073.

It is not a de Polignac number, because 64164527 - 2⁸ = 64164271 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 (64164521) 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, 4583174 + ... + 4583187.

It is an arithmetic number, because the mean of its divisors is an integer number (18332724).

Almost surely, 2^64164527 is an apocalyptic number.

64164527 is a deficient number, since it is larger than the sum of its proper divisors (9166369).

64164527 is an equidigital number, since it uses as much as digits as its factorization.

64164527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9166368.

The product of its digits is 40320, while the sum is 35.

The square root of 64164527 is about 8010.2763373057. The cubic root of 64164527 is about 400.3424712832.

The spelling of 64164527 in words is "sixty-four million, one hundred sixty-four thousand, five hundred twenty-seven".