64012156 has 12 divisors (see below), whose sum is σ = 120638392. Its totient is φ = 29544048.

The previous prime is 64012153. The next prime is 64012163. The reversal of 64012156 is 65121046.

It is a super-2 number, since 2×64012156² = 8195112231536672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64012156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64012153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615450 + ... + 615553.

Almost surely, 2^64012156 is an apocalyptic number.

It is an amenable number.

64012156 is a deficient number, since it is larger than the sum of its proper divisors (56626236).

64012156 is a wasteful number, since it uses less digits than its factorization.

64012156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231020 (or 1231018 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 64012156 is about 8000.7597139272. The cubic root of 64012156 is about 400.0253233968.

The spelling of 64012156 in words is "sixty-four million, twelve thousand, one hundred fifty-six".