159628139 has 8 divisors (see below), whose sum is σ = 183305280. Its totient is φ = 137478600.

The previous prime is 159628127. The next prime is 159628141. The reversal of 159628139 is 931826951.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 159628139 - 2²⁴ = 142850923 is a prime.

It is a super-2 number, since 2×159628139² = 50962285521206642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 159628139.

It is not an unprimeable number, because it can be changed into a prime (159628159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381677 + ... + 382094.

It is an arithmetic number, because the mean of its divisors is an integer number (22913160).

Almost surely, 2^159628139 is an apocalyptic number.

159628139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

159628139 is a deficient number, since it is larger than the sum of its proper divisors (23677141).

159628139 is a wasteful number, since it uses less digits than its factorization.

159628139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763801.

The product of its digits is 116640, while the sum is 44.

The square root of 159628139 is about 12634.4029934144. The cubic root of 159628139 is about 542.4626195513.

The spelling of 159628139 in words is "one hundred fifty-nine million, six hundred twenty-eight thousand, one hundred thirty-nine".