64538167 has 2 divisors, whose sum is σ = 64538168. Its totient is φ = 64538166.

The previous prime is 64538129. The next prime is 64538179. The reversal of 64538167 is 76183546.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64538167 - 2⁷ = 64538039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64538867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32269083 + 32269084.

It is an arithmetic number, because the mean of its divisors is an integer number (32269084).

Almost surely, 2^64538167 is an apocalyptic number.

64538167 is a deficient number, since it is larger than the sum of its proper divisors (1).

64538167 is an equidigital number, since it uses as much as digits as its factorization.

64538167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 64538167 is about 8033.5650243214. The cubic root of 64538167 is about 401.1180532307.

The spelling of 64538167 in words is "sixty-four million, five hundred thirty-eight thousand, one hundred sixty-seven".