159722970 has 64 divisors (see below), whose sum is σ = 419437440. Its totient is φ = 38604800.

The previous prime is 159722963. The next prime is 159722989. The reversal of 159722970 is 79227951.

159722970 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×159722970² = 51022854291241800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171466 + ... + 172394.

It is an arithmetic number, because the mean of its divisors is an integer number (6553710).

Almost surely, 2^159722970 is an apocalyptic number.

159722970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 159722970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209718720).

159722970 is an abundant number, since it is smaller than the sum of its proper divisors (259714470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159722970 is a wasteful number, since it uses less digits than its factorization.

159722970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 159722970 is about 12638.1553242552. The cubic root of 159722970 is about 542.5700193483.

The spelling of 159722970 in words is "one hundred fifty-nine million, seven hundred twenty-two thousand, nine hundred seventy".