129769413 has 8 divisors (see below), whose sum is σ = 174810048. Its totient is φ = 85620864.

The previous prime is 129769369. The next prime is 129769433. The reversal of 129769413 is 314967921.

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

It is a de Polignac number, because none of the positive numbers 2^k-129769413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129769433) 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, 222681 + ... + 223262.

It is an arithmetic number, because the mean of its divisors is an integer number (21851256).

Almost surely, 2^129769413 is an apocalyptic number.

It is an amenable number.

129769413 is a deficient number, since it is larger than the sum of its proper divisors (45040635).

129769413 is an equidigital number, since it uses as much as digits as its factorization.

129769413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446043.

The product of its digits is 81648, while the sum is 42.

The square root of 129769413 is about 11391.6378541455. The cubic root of 129769413 is about 506.2800100485.

The spelling of 129769413 in words is "one hundred twenty-nine million, seven hundred sixty-nine thousand, four hundred thirteen".