159223977 has 12 divisors (see below), whose sum is σ = 250898544. Its totient is φ = 96499320.

The previous prime is 159223943. The next prime is 159223993. The reversal of 159223977 is 779322951.

159223977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 159223977 - 2⁷ = 159223849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159223907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 804063 + ... + 804260.

It is an arithmetic number, because the mean of its divisors is an integer number (20908212).

Almost surely, 2^159223977 is an apocalyptic number.

It is an amenable number.

159223977 is a deficient number, since it is larger than the sum of its proper divisors (91674567).

159223977 is a wasteful number, since it uses less digits than its factorization.

159223977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608340 (or 1608337 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 159223977 is about 12618.3983531984. The cubic root of 159223977 is about 542.0044128034.

The spelling of 159223977 in words is "one hundred fifty-nine million, two hundred twenty-three thousand, nine hundred seventy-seven".