159178959 has 8 divisors (see below), whose sum is σ = 235820720. Its totient is φ = 106119288.

The previous prime is 159178949. The next prime is 159178969. The reversal of 159178959 is 959871951.

It is an interprime number because it is at equal distance from previous prime (159178949) and next prime (159178969).

It is not a de Polignac number, because 159178959 - 2⁵ = 159178927 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 (159178949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2947732 + ... + 2947785.

It is an arithmetic number, because the mean of its divisors is an integer number (29477590).

Almost surely, 2^159178959 is an apocalyptic number.

159178959 is a deficient number, since it is larger than the sum of its proper divisors (76641761).

159178959 is an equidigital number, since it uses as much as digits as its factorization.

159178959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895526 (or 5895520 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 54.

The square root of 159178959 is about 12616.6144032383. The cubic root of 159178959 is about 541.9533269995.

The spelling of 159178959 in words is "one hundred fifty-nine million, one hundred seventy-eight thousand, nine hundred fifty-nine".