64234013 has 2 divisors, whose sum is σ = 64234014. Its totient is φ = 64234012.

The previous prime is 64233989. The next prime is 64234021. The reversal of 64234013 is 31043246.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45941284 + 18292729 = 6778^2 + 4277^2 .

It is a cyclic number.

It is not a de Polignac number, because 64234013 - 2¹⁰ = 64232989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64234013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64234033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32117006 + 32117007.

It is an arithmetic number, because the mean of its divisors is an integer number (32117007).

Almost surely, 2^64234013 is an apocalyptic number.

It is an amenable number.

64234013 is a deficient number, since it is larger than the sum of its proper divisors (1).

64234013 is an equidigital number, since it uses as much as digits as its factorization.

64234013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 64234013 is about 8014.6124672376. The cubic root of 64234013 is about 400.4869340808.

Adding to 64234013 its reverse (31043246), we get a palindrome (95277259).

The spelling of 64234013 in words is "sixty-four million, two hundred thirty-four thousand, thirteen".