64142508 has 24 divisors (see below), whose sum is σ = 152491248. Its totient is φ = 20977216.

The previous prime is 64142501. The next prime is 64142509. The reversal of 64142508 is 80524146.

It is a super-2 number, since 2×64142508² = 8228522665060128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (64142501) 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, 49791 + ... + 51062.

It is an arithmetic number, because the mean of its divisors is an integer number (6353802).

Almost surely, 2^64142508 is an apocalyptic number.

It is an amenable number.

64142508 is an abundant number, since it is smaller than the sum of its proper divisors (88348740).

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

64142508 is a wasteful number, since it uses less digits than its factorization.

64142508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100913 (or 100911 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 64142508 is about 8008.9017973752. The cubic root of 64142508 is about 400.2966715772.

The spelling of 64142508 in words is "sixty-four million, one hundred forty-two thousand, five hundred eight".