159878951 has 8 divisors (see below), whose sum is σ = 163350144. Its totient is φ = 156439800.

The previous prime is 159878941. The next prime is 159878963.

It is a happy number.

159878951 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159878951 is a prime.

It is a super-2 number, since 2×159878951² = 51122557945720802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159878893 and 159878902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159878941) 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, 2216 + ... + 18018.

It is an arithmetic number, because the mean of its divisors is an integer number (20418768).

Almost surely, 2^159878951 is an apocalyptic number.

159878951 is a deficient number, since it is larger than the sum of its proper divisors (3471193).

159878951 is a wasteful number, since it uses less digits than its factorization.

159878951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16021.

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

The square root of 159878951 is about 12644.3248534669. The cubic root of 159878951 is about 542.7465814709.

The spelling of 159878951 in words is "one hundred fifty-nine million, eight hundred seventy-eight thousand, nine hundred fifty-one".