64564163 has 2 divisors, whose sum is σ = 64564164. Its totient is φ = 64564162.

The previous prime is 64564111. The next prime is 64564219. The reversal of 64564163 is 36146546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64564163 - 2⁶ = 64564099 is a prime.

It is a super-2 number, since 2×64564163² = 8337062287781138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64564363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32282081 + 32282082.

It is an arithmetic number, because the mean of its divisors is an integer number (32282082).

Almost surely, 2^64564163 is an apocalyptic number.

64564163 is a deficient number, since it is larger than the sum of its proper divisors (1).

64564163 is an equidigital number, since it uses as much as digits as its factorization.

64564163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 64564163 is about 8035.1828230601. The cubic root of 64564163 is about 401.1719028397.

The spelling of 64564163 in words is "sixty-four million, five hundred sixty-four thousand, one hundred sixty-three".