64137113 has 4 divisors (see below), whose sum is σ = 64156980. Its totient is φ = 64117248.

The previous prime is 64137091. The next prime is 64137131. The reversal of 64137113 is 31173146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14462809 + 49674304 = 3803^2 + 7048^2 .

It is a cyclic number.

It is not a de Polignac number, because 64137113 - 2¹⁰ = 64136089 is a prime.

It is a super-2 number, since 2×64137113² = 8227138527949538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64137163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3848 + ... + 11961.

It is an arithmetic number, because the mean of its divisors is an integer number (16039245).

Almost surely, 2^64137113 is an apocalyptic number.

It is an amenable number.

64137113 is a deficient number, since it is larger than the sum of its proper divisors (19867).

64137113 is a wasteful number, since it uses less digits than its factorization.

64137113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19866.

The product of its digits is 1512, while the sum is 26.

The square root of 64137113 is about 8008.5649775724. The cubic root of 64137113 is about 400.2854483330.

The spelling of 64137113 in words is "sixty-four million, one hundred thirty-seven thousand, one hundred thirteen".