64135752 has 16 divisors (see below), whose sum is σ = 160339440. Its totient is φ = 21378576.

The previous prime is 64135751. The next prime is 64135759. The reversal of 64135752 is 25753146.

It is a super-2 number, since 2×64135752² = 8226789369211008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64135751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1336138 + ... + 1336185.

It is an arithmetic number, because the mean of its divisors is an integer number (10021215).

Almost surely, 2^64135752 is an apocalyptic number.

It is an amenable number.

64135752 is an abundant number, since it is smaller than the sum of its proper divisors (96203688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64135752 is a wasteful number, since it uses less digits than its factorization.

64135752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672332 (or 2672328 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 64135752 is about 8008.4800055941. The cubic root of 64135752 is about 400.2826169388.

Adding to 64135752 its reverse (25753146), we get a palindrome (89888898).

The spelling of 64135752 in words is "sixty-four million, one hundred thirty-five thousand, seven hundred fifty-two".