64112144 has 20 divisors (see below), whose sum is σ = 125426496. Its totient is φ = 31744032.

The previous prime is 64112143. The next prime is 64112203. The reversal of 64112144 is 44121146.

It is a happy number.

It is a super-2 number, since 2×64112144² = 8220734016553472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64112143) 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, 17804 + ... + 21099.

Almost surely, 2^64112144 is an apocalyptic number.

It is an amenable number.

64112144 is a deficient number, since it is larger than the sum of its proper divisors (61314352).

64112144 is a wasteful number, since it uses less digits than its factorization.

64112144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39014 (or 39008 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 64112144 is about 8007.0059323070. The cubic root of 64112144 is about 400.2334970047.

The spelling of 64112144 in words is "sixty-four million, one hundred twelve thousand, one hundred forty-four".