129966159 has 16 divisors (see below), whose sum is σ = 176504832. Its totient is φ = 85051008.

The previous prime is 129966143. The next prime is 129966181. The reversal of 129966159 is 951669921.

It is not a de Polignac number, because 129966159 - 2⁴ = 129966143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129966119) 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, 34482 + ... + 38064.

It is an arithmetic number, because the mean of its divisors is an integer number (11031552).

Almost surely, 2^129966159 is an apocalyptic number.

129966159 is a deficient number, since it is larger than the sum of its proper divisors (46538673).

129966159 is a wasteful number, since it uses less digits than its factorization.

129966159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806.

The product of its digits is 262440, while the sum is 48.

The square root of 129966159 is about 11400.2701283785. The cubic root of 129966159 is about 506.5357412653.

The spelling of 129966159 in words is "one hundred twenty-nine million, nine hundred sixty-six thousand, one hundred fifty-nine".