159972722 has 32 divisors (see below), whose sum is σ = 297341184. Its totient is φ = 62856000.

The previous prime is 159972697. The next prime is 159972739. The reversal of 159972722 is 227279951.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24572 + ... + 30392.

It is an arithmetic number, because the mean of its divisors is an integer number (9291912).

Almost surely, 2^159972722 is an apocalyptic number.

159972722 is a deficient number, since it is larger than the sum of its proper divisors (137368462).

159972722 is a wasteful number, since it uses less digits than its factorization.

159972722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994.

The product of its digits is 158760, while the sum is 44.

The square root of 159972722 is about 12648.0323370871. The cubic root of 159972722 is about 542.8526699473.

The spelling of 159972722 in words is "one hundred fifty-nine million, nine hundred seventy-two thousand, seven hundred twenty-two".