129391159 has 8 divisors (see below), whose sum is σ = 136315440. Its totient is φ = 122478336.

The previous prime is 129391147. The next prime is 129391211. The reversal of 129391159 is 951193921.

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 129391159 - 2⁹ = 129390647 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 (129391459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30237 + ... + 34249.

It is an arithmetic number, because the mean of its divisors is an integer number (17039430).

Almost surely, 2^129391159 is an apocalyptic number.

129391159 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

129391159 is a deficient number, since it is larger than the sum of its proper divisors (6924281).

129391159 is a wasteful number, since it uses less digits than its factorization.

129391159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5729.

The product of its digits is 21870, while the sum is 40.

The square root of 129391159 is about 11375.0234725033. The cubic root of 129391159 is about 505.7876269278.

The spelling of 129391159 in words is "one hundred twenty-nine million, three hundred ninety-one thousand, one hundred fifty-nine".