159442 has 8 divisors (see below), whose sum is σ = 247500. Its totient is φ = 76944.

The previous prime is 159437. The next prime is 159457. The reversal of 159442 is 244951.

159442 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 152881 + 6561 = 391^2 + 81^2 .

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

It is an unprimeable number.

159442 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317 + ... + 1432.

2¹⁵⁹⁴⁴² is an apocalyptic number.

159442 is a deficient number, since it is larger than the sum of its proper divisors (88058).

159442 is a wasteful number, since it uses less digits than its factorization.

159442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780.

The product of its digits is 1440, while the sum is 25.

The square root of 159442 is about 399.3018908044. The cubic root of 159442 is about 54.2251686142.

The spelling of 159442 in words is "one hundred fifty-nine thousand, four hundred forty-two".