159989374 has 4 divisors (see below), whose sum is σ = 239984064. Its totient is φ = 79994686.

The previous prime is 159989359. The next prime is 159989381. The reversal of 159989374 is 473989951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 473989951 = 9281 ⋅51071.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39997342 + ... + 39997345.

It is an arithmetic number, because the mean of its divisors is an integer number (59996016).

Almost surely, 2^159989374 is an apocalyptic number.

159989374 is a deficient number, since it is larger than the sum of its proper divisors (79994690).

159989374 is an equidigital number, since it uses as much as digits as its factorization.

159989374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79994689.

The product of its digits is 2449440, while the sum is 55.

The square root of 159989374 is about 12648.6906041693. The cubic root of 159989374 is about 542.8715049689.

The spelling of 159989374 in words is "one hundred fifty-nine million, nine hundred eighty-nine thousand, three hundred seventy-four".