159923397 has 8 divisors (see below), whose sum is σ = 213356800. Its totient is φ = 106552800.

The previous prime is 159923381. The next prime is 159923447. The reversal of 159923397 is 793329951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 159923397 - 2⁴ = 159923381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159923297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9397 + ... + 20202.

It is an arithmetic number, because the mean of its divisors is an integer number (26669600).

Almost surely, 2^159923397 is an apocalyptic number.

It is an amenable number.

159923397 is a deficient number, since it is larger than the sum of its proper divisors (53433403).

159923397 is a wasteful number, since it uses less digits than its factorization.

159923397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31403.

The product of its digits is 459270, while the sum is 48.

The square root of 159923397 is about 12646.0822787138. The cubic root of 159923397 is about 542.7968709334.

The spelling of 159923397 in words is "one hundred fifty-nine million, nine hundred twenty-three thousand, three hundred ninety-seven".