129003679 has 24 divisors (see below), whose sum is σ = 154558464. Its totient is φ = 105462000.

The previous prime is 129003653. The next prime is 129003683. The reversal of 129003679 is 976300921.

It is not a de Polignac number, because 129003679 - 2⁵ = 129003647 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 (129003649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 854254 + ... + 854404.

It is an arithmetic number, because the mean of its divisors is an integer number (6439936).

Almost surely, 2^129003679 is an apocalyptic number.

129003679 is a deficient number, since it is larger than the sum of its proper divisors (25554785).

129003679 is a wasteful number, since it uses less digits than its factorization.

129003679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 129003679 is about 11357.9786493900. The cubic root of 129003679 is about 505.2822380749.

The spelling of 129003679 in words is "one hundred twenty-nine million, three thousand, six hundred seventy-nine".