159920712 has 72 divisors (see below), whose sum is σ = 503842950. Its totient is φ = 45690624.

The previous prime is 159920689. The next prime is 159920729. The reversal of 159920712 is 217029951.

It can be written as a sum of positive squares in only one way, i.e., 131469156 + 28451556 = 11466^2 + 5334^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19137 + ... + 26192.

Almost surely, 2^159920712 is an apocalyptic number.

159920712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

159920712 is an abundant number, since it is smaller than the sum of its proper divisors (343922238).

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

159920712 is a wasteful number, since it uses less digits than its factorization.

159920712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45355 (or 45341 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 159920712 is about 12645.9761189083. The cubic root of 159920712 is about 542.7938331920.

The spelling of 159920712 in words is "one hundred fifty-nine million, nine hundred twenty thousand, seven hundred twelve".