64144017 has 24 divisors (see below), whose sum is σ = 106735616. Its totient is φ = 36360576.

The previous prime is 64144013. The next prime is 64144037. The reversal of 64144017 is 71044146.

64144017 is a `hidden beast` number, since 641 + 4 + 4 + 0 + 17 = 666.

It is not a de Polignac number, because 64144017 - 2² = 64144013 is a prime.

It is a super-2 number, since 2×64144017² = 8228909833792578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64144013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3993 + ... + 12009.

Almost surely, 2^64144017 is an apocalyptic number.

It is an amenable number.

64144017 is a deficient number, since it is larger than the sum of its proper divisors (42591599).

64144017 is a wasteful number, since it uses less digits than its factorization.

64144017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157 (or 8154 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 64144017 is about 8008.9960044939. The cubic root of 64144017 is about 400.2998106445.

The spelling of 64144017 in words is "sixty-four million, one hundred forty-four thousand, seventeen".