64195073 has 2 divisors, whose sum is σ = 64195074. Its totient is φ = 64195072.

The previous prime is 64195069. The next prime is 64195097. The reversal of 64195073 is 37059146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43191184 + 21003889 = 6572^2 + 4583^2 .

It is a cyclic number.

It is not a de Polignac number, because 64195073 - 2² = 64195069 is a prime.

It is not a weakly prime, because it can be changed into another prime (64195003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32097536 + 32097537.

It is an arithmetic number, because the mean of its divisors is an integer number (32097537).

Almost surely, 2^64195073 is an apocalyptic number.

It is an amenable number.

64195073 is a deficient number, since it is larger than the sum of its proper divisors (1).

64195073 is an equidigital number, since it uses as much as digits as its factorization.

64195073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 64195073 is about 8012.1827862325. The cubic root of 64195073 is about 400.4059898745.

The spelling of 64195073 in words is "sixty-four million, one hundred ninety-five thousand, seventy-three".