159942445 has 24 divisors (see below), whose sum is σ = 209129472. Its totient is φ = 117374400.

The previous prime is 159942421. The next prime is 159942463. The reversal of 159942445 is 544249951.

It is not a de Polignac number, because 159942445 - 2⁷ = 159942317 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

Its product of digits (259200) is a multiple of the sum of its prime divisors (1200).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160900 + ... + 161890.

It is an arithmetic number, because the mean of its divisors is an integer number (8713728).

Almost surely, 2^159942445 is an apocalyptic number.

It is an amenable number.

159942445 is a deficient number, since it is larger than the sum of its proper divisors (49187027).

159942445 is a wasteful number, since it uses less digits than its factorization.

159942445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213 (or 1200 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The square root of 159942445 is about 12646.8353749070. The cubic root of 159942445 is about 542.8184203846.

It can be divided in two parts, 1599 and 42445, that added together give a palindrome (44044).

The spelling of 159942445 in words is "one hundred fifty-nine million, nine hundred forty-two thousand, four hundred forty-five".