159158978 has 16 divisors (see below), whose sum is σ = 267482304. Its totient is φ = 70389360.

The previous prime is 159158977. The next prime is 159159001. The reversal of 159158978 is 879851951.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (159158971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96950 + ... + 98577.

It is an arithmetic number, because the mean of its divisors is an integer number (16717644).

Almost surely, 2^159158978 is an apocalyptic number.

159158978 is a deficient number, since it is larger than the sum of its proper divisors (108323326).

159158978 is a wasteful number, since it uses less digits than its factorization.

159158978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195577.

The product of its digits is 907200, while the sum is 53.

The square root of 159158978 is about 12615.8225257016. The cubic root of 159158978 is about 541.9306497508.

The spelling of 159158978 in words is "one hundred fifty-nine million, one hundred fifty-eight thousand, nine hundred seventy-eight".