159879225 has 24 divisors (see below), whose sum is σ = 288365472. Its totient is φ = 77516800.

The previous prime is 159879197. The next prime is 159879229. The reversal of 159879225 is 522978951.

It is not a de Polignac number, because 159879225 - 2¹² = 159875129 is a prime.

It is a super-2 number, since 2×159879225² = 51122733173201250, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159879229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96072 + ... + 97721.

It is an arithmetic number, because the mean of its divisors is an integer number (12015228).

Almost surely, 2^159879225 is an apocalyptic number.

159879225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

159879225 is a deficient number, since it is larger than the sum of its proper divisors (128486247).

159879225 is a wasteful number, since it uses less digits than its factorization.

159879225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193817 (or 193812 counting only the distinct ones).

The product of its digits is 453600, while the sum is 48.

The square root of 159879225 is about 12644.3356883626. The cubic root of 159879225 is about 542.7468915231.

The spelling of 159879225 in words is "one hundred fifty-nine million, eight hundred seventy-nine thousand, two hundred twenty-five".