64315234 has 4 divisors (see below), whose sum is σ = 96472854. Its totient is φ = 32157616.

The previous prime is 64315231. The next prime is 64315249. The reversal of 64315234 is 43251346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43251346 = 2 ⋅21625673.

It can be written as a sum of positive squares in only one way, i.e., 36784225 + 27531009 = 6065^2 + 5247^2 .

It is not an unprimeable number, because it can be changed into a prime (64315231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16078807 + ... + 16078810.

Almost surely, 2^64315234 is an apocalyptic number.

64315234 is a deficient number, since it is larger than the sum of its proper divisors (32157620).

64315234 is a wasteful number, since it uses less digits than its factorization.

64315234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32157619.

The product of its digits is 8640, while the sum is 28.

The square root of 64315234 is about 8019.6779237074. The cubic root of 64315234 is about 400.6556621805.

The spelling of 64315234 in words is "sixty-four million, three hundred fifteen thousand, two hundred thirty-four".