64121163 has 16 divisors (see below), whose sum is σ = 86717952. Its totient is φ = 42140000.

The previous prime is 64121159. The next prime is 64121173. The reversal of 64121163 is 36112146.

It is a cyclic number.

It is not a de Polignac number, because 64121163 - 2² = 64121159 is a prime.

It is a super-2 number, since 2×64121163² = 8223047088945138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64121173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130348 + ... + 130838.

It is an arithmetic number, because the mean of its divisors is an integer number (5419872).

Almost surely, 2^64121163 is an apocalyptic number.

64121163 is a deficient number, since it is larger than the sum of its proper divisors (22596789).

64121163 is a wasteful number, since it uses less digits than its factorization.

64121163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026.

The product of its digits is 864, while the sum is 24.

The square root of 64121163 is about 8007.5691067889. The cubic root of 64121163 is about 400.2522637907.

The spelling of 64121163 in words is "sixty-four million, one hundred twenty-one thousand, one hundred sixty-three".