64159387 has 2 divisors, whose sum is σ = 64159388. Its totient is φ = 64159386.

The previous prime is 64159349. The next prime is 64159439. The reversal of 64159387 is 78395146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64159387 - 2²³ = 55770779 is a prime.

It is equal to p_3793966 and since 64159387 and 3793966 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (64159327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32079693 + 32079694.

It is an arithmetic number, because the mean of its divisors is an integer number (32079694).

Almost surely, 2^64159387 is an apocalyptic number.

64159387 is a deficient number, since it is larger than the sum of its proper divisors (1).

64159387 is an equidigital number, since it uses as much as digits as its factorization.

64159387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 64159387 is about 8009.9554930099. The cubic root of 64159387 is about 400.3317809774.

It can be divided in two parts, 64159 and 387, that added together give a palindrome (64546).

The spelling of 64159387 in words is "sixty-four million, one hundred fifty-nine thousand, three hundred eighty-seven".