64753131 has 4 divisors (see below), whose sum is σ = 86337512. Its totient is φ = 43168752.

The previous prime is 64753123. The next prime is 64753133. The reversal of 64753131 is 13135746.

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

It is not a de Polignac number, because 64753131 - 2³ = 64753123 is a prime.

It is a super-2 number, since 2×64753131² = 8385935948606322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64753133) 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, 10792186 + ... + 10792191.

It is an arithmetic number, because the mean of its divisors is an integer number (21584378).

Almost surely, 2^64753131 is an apocalyptic number.

64753131 is a deficient number, since it is larger than the sum of its proper divisors (21584381).

64753131 is a wasteful number, since it uses less digits than its factorization.

64753131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21584380.

The product of its digits is 7560, while the sum is 30.

The square root of 64753131 is about 8046.9330182374. The cubic root of 64753131 is about 401.5629082576.

Adding to 64753131 its reverse (13135746), we get a palindrome (77888877).

The spelling of 64753131 in words is "sixty-four million, seven hundred fifty-three thousand, one hundred thirty-one".