159139428 has 48 divisors (see below), whose sum is σ = 426276480. Its totient is φ = 45264384.

The previous prime is 159139427. The next prime is 159139433. The reversal of 159139428 is 824931951.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 159139428.

It is not an unprimeable number, because it can be changed into a prime (159139427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15100 + ... + 23372.

It is an arithmetic number, because the mean of its divisors is an integer number (8880760).

Almost surely, 2^159139428 is an apocalyptic number.

It is an amenable number.

159139428 is an abundant number, since it is smaller than the sum of its proper divisors (267137052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159139428 is a wasteful number, since it uses less digits than its factorization.

159139428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8516 (or 8514 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 159139428 is about 12615.0476812416. The cubic root of 159139428 is about 541.9084598244.

The spelling of 159139428 in words is "one hundred fifty-nine million, one hundred thirty-nine thousand, four hundred twenty-eight".