64975061 has 2 divisors, whose sum is σ = 64975062. Its totient is φ = 64975060.

The previous prime is 64975049. The next prime is 64975087. The reversal of 64975061 is 16057946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61622500 + 3352561 = 7850^2 + 1831^2 .

It is a cyclic number.

It is not a de Polignac number, because 64975061 - 2¹⁰ = 64974037 is a prime.

It is a Chen prime.

It is equal to p_3839177 and since 64975061 and 3839177 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64975091) 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, 32487530 + 32487531.

It is an arithmetic number, because the mean of its divisors is an integer number (32487531).

Almost surely, 2^64975061 is an apocalyptic number.

It is an amenable number.

64975061 is a deficient number, since it is larger than the sum of its proper divisors (1).

64975061 is an equidigital number, since it uses as much as digits as its factorization.

64975061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 64975061 is about 8060.7109487935. The cubic root of 64975061 is about 402.0211472914.

The spelling of 64975061 in words is "sixty-four million, nine hundred seventy-five thousand, sixty-one".