64312357 has 2 divisors, whose sum is σ = 64312358. Its totient is φ = 64312356.

The previous prime is 64312291. The next prime is 64312421. The reversal of 64312357 is 75321346.

64312357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63904036 + 408321 = 7994^2 + 639^2 .

It is a cyclic number.

It is not a de Polignac number, because 64312357 - 2⁷ = 64312229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64312057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32156178 + 32156179.

It is an arithmetic number, because the mean of its divisors is an integer number (32156179).

Almost surely, 2^64312357 is an apocalyptic number.

It is an amenable number.

64312357 is a deficient number, since it is larger than the sum of its proper divisors (1).

64312357 is an equidigital number, since it uses as much as digits as its factorization.

64312357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 64312357 is about 8019.4985504082. The cubic root of 64312357 is about 400.6496879426.

The spelling of 64312357 in words is "sixty-four million, three hundred twelve thousand, three hundred fifty-seven".