159799142 has 4 divisors (see below), whose sum is σ = 239698716. Its totient is φ = 79899570.

The previous prime is 159799109. The next prime is 159799219. The reversal of 159799142 is 241997951.

159799142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

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, 39949784 + ... + 39949787.

It is an arithmetic number, because the mean of its divisors is an integer number (59924679).

Almost surely, 2^159799142 is an apocalyptic number.

159799142 is a deficient number, since it is larger than the sum of its proper divisors (79899574).

159799142 is an equidigital number, since it uses as much as digits as its factorization.

159799142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79899573.

The product of its digits is 204120, while the sum is 47.

The square root of 159799142 is about 12641.1685377579. The cubic root of 159799142 is about 542.6562563193.

The spelling of 159799142 in words is "one hundred fifty-nine million, seven hundred ninety-nine thousand, one hundred forty-two".