159921316 has 9 divisors (see below), whose sum is σ = 279906571. Its totient is φ = 79948012.

The previous prime is 159921301. The next prime is 159921379. The reversal of 159921316 is 613129951.

It is a happy number.

The square root of 159921316 is 12646.

It is a perfect power (a square), and thus also a powerful number.

159921316 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×159921316² = 51149654622343712, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 22131 + ... + 28453.

Almost surely, 2^159921316 is an apocalyptic number.

159921316 is the 12646-th square number.

It is an amenable number.

159921316 is a deficient number, since it is larger than the sum of its proper divisors (119985255).

159921316 is an frugal number, since it uses more digits than its factorization.

159921316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12650 (or 6325 counting only the distinct ones).

The product of its digits is 14580, while the sum is 37.

The cubic root of 159921316 is about 542.7945165454.

The spelling of 159921316 in words is "one hundred fifty-nine million, nine hundred twenty-one thousand, three hundred sixteen".