64424159 has 4 divisors (see below), whose sum is σ = 64448904. Its totient is φ = 64399416.

The previous prime is 64424153. The next prime is 64424177. The reversal of 64424159 is 95142446.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64424159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64424153) 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, 7937 + ... + 13850.

It is an arithmetic number, because the mean of its divisors is an integer number (16112226).

Almost surely, 2^64424159 is an apocalyptic number.

64424159 is a deficient number, since it is larger than the sum of its proper divisors (24745).

64424159 is a wasteful number, since it uses less digits than its factorization.

64424159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24744.

The product of its digits is 34560, while the sum is 35.

The square root of 64424159 is about 8026.4661589021. The cubic root of 64424159 is about 400.8817195817.

It can be divided in two parts, 6442 and 4159, that added together give a palindrome (10601).

The spelling of 64424159 in words is "sixty-four million, four hundred twenty-four thousand, one hundred fifty-nine".