129274159 has 16 divisors (see below), whose sum is σ = 149914368. Its totient is φ = 109190592.

The previous prime is 129274153. The next prime is 129274163. The reversal of 129274159 is 951472921.

It is a happy number.

It is not a de Polignac number, because 129274159 - 2⁵ = 129274127 is a prime.

It is a Duffinian number.

Its product of digits (45360) is a multiple of the sum of its prime divisors (1134).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129274153) 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, 155904 + ... + 156730.

It is an arithmetic number, because the mean of its divisors is an integer number (9369648).

Almost surely, 2^129274159 is an apocalyptic number.

129274159 is a deficient number, since it is larger than the sum of its proper divisors (20640209).

129274159 is a wasteful number, since it uses less digits than its factorization.

129274159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134.

The product of its digits is 45360, while the sum is 40.

The square root of 129274159 is about 11369.8794628615. The cubic root of 129274159 is about 505.6351306819.

The spelling of 129274159 in words is "one hundred twenty-nine million, two hundred seventy-four thousand, one hundred fifty-nine".