64195039 has 2 divisors, whose sum is σ = 64195040. Its totient is φ = 64195038.

The previous prime is 64195003. The next prime is 64195051. The reversal of 64195039 is 93059146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64195039 - 2¹¹ = 64192991 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64194989 and 64195007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64195069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32097519 + 32097520.

It is an arithmetic number, because the mean of its divisors is an integer number (32097520).

Almost surely, 2^64195039 is an apocalyptic number.

64195039 is a deficient number, since it is larger than the sum of its proper divisors (1).

64195039 is an equidigital number, since it uses as much as digits as its factorization.

64195039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 64195039 is about 8012.1806644633. The cubic root of 64195039 is about 400.4059191847.

The spelling of 64195039 in words is "sixty-four million, one hundred ninety-five thousand, thirty-nine".