64266313 has 2 divisors, whose sum is σ = 64266314. Its totient is φ = 64266312.

The previous prime is 64266287. The next prime is 64266329. The reversal of 64266313 is 31366246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58491904 + 5774409 = 7648^2 + 2403^2 .

It is a cyclic number.

It is not a de Polignac number, because 64266313 - 2¹³ = 64258121 is a prime.

It is a super-2 number, since 2×64266313² = 8260317973227938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64266413) 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, 32133156 + 32133157.

It is an arithmetic number, because the mean of its divisors is an integer number (32133157).

Almost surely, 2^64266313 is an apocalyptic number.

It is an amenable number.

64266313 is a deficient number, since it is larger than the sum of its proper divisors (1).

64266313 is an equidigital number, since it uses as much as digits as its factorization.

64266313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The square root of 64266313 is about 8016.6272833405. The cubic root of 64266313 is about 400.5540509645.

The spelling of 64266313 in words is "sixty-four million, two hundred sixty-six thousand, three hundred thirteen".