156840159 has 16 divisors (see below), whose sum is σ = 239647232. Its totient is φ = 89378208.

The previous prime is 156840127. The next prime is 156840169. The reversal of 156840159 is 951048651.

It is not a de Polignac number, because 156840159 - 2⁵ = 156840127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156840109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2179 + ... + 17844.

It is an arithmetic number, because the mean of its divisors is an integer number (14977952).

Almost surely, 2^156840159 is an apocalyptic number.

156840159 is a deficient number, since it is larger than the sum of its proper divisors (82807073).

156840159 is a wasteful number, since it uses less digits than its factorization.

156840159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20406.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 156840159 is about 12523.5841115872. The cubic root of 156840159 is about 539.2859320271.

The spelling of 156840159 in words is "one hundred fifty-six million, eight hundred forty thousand, one hundred fifty-nine".