64100957 has 2 divisors, whose sum is σ = 64100958. Its totient is φ = 64100956.

The previous prime is 64100947. The next prime is 64100989. The reversal of 64100957 is 75900146.

It is a happy number.

It is an a-pointer prime, because the next prime (64100989) can be obtained adding 64100957 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60543961 + 3556996 = 7781^2 + 1886^2 .

It is a cyclic number.

It is not a de Polignac number, because 64100957 - 2¹⁸ = 63838813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64100947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32050478 + 32050479.

It is an arithmetic number, because the mean of its divisors is an integer number (32050479).

Almost surely, 2^64100957 is an apocalyptic number.

It is an amenable number.

64100957 is a deficient number, since it is larger than the sum of its proper divisors (1).

64100957 is an equidigital number, since it uses as much as digits as its factorization.

64100957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 64100957 is about 8006.3073261023. The cubic root of 64100957 is about 400.2102165864.

The spelling of 64100957 in words is "sixty-four million, one hundred thousand, nine hundred fifty-seven".