64081159 has 4 divisors (see below), whose sum is σ = 64150200. Its totient is φ = 64012120.

The previous prime is 64081153. The next prime is 64081169. The reversal of 64081159 is 95118046.

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

It is a cyclic number.

It is not a de Polignac number, because 64081159 - 2¹⁷ = 63950087 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 (64081153) 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, 33109 + ... + 34990.

It is an arithmetic number, because the mean of its divisors is an integer number (16037550).

Almost surely, 2^64081159 is an apocalyptic number.

64081159 is a deficient number, since it is larger than the sum of its proper divisors (69041).

64081159 is an equidigital number, since it uses as much as digits as its factorization.

64081159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69040.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 64081159 is about 8005.0708304174. The cubic root of 64081159 is about 400.1690098291.

The spelling of 64081159 in words is "sixty-four million, eighty-one thousand, one hundred fifty-nine".