64137039 has 8 divisors (see below), whose sum is σ = 90546480. Its totient is φ = 40242816.

The previous prime is 64137013. The next prime is 64137083. The reversal of 64137039 is 93073146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64137039 - 2⁷ = 64136911 is a prime.

It is a super-2 number, since 2×64137039² = 8227119543375042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64137239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628744 + ... + 628845.

It is an arithmetic number, because the mean of its divisors is an integer number (11318310).

Almost surely, 2^64137039 is an apocalyptic number.

64137039 is a deficient number, since it is larger than the sum of its proper divisors (26409441).

64137039 is a wasteful number, since it uses less digits than its factorization.

64137039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257609.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 64137039 is about 8008.5603575174. The cubic root of 64137039 is about 400.2852943861.

The spelling of 64137039 in words is "sixty-four million, one hundred thirty-seven thousand, thirty-nine".