129479276 has 36 divisors (see below), whose sum is σ = 244498968. Its totient is φ = 59789184.

The previous prime is 129479269. The next prime is 129479333. The reversal of 129479276 is 672974921.

It is a self number, because there is not a number n which added to its sum of digits gives 129479276.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 236435 + ... + 236981.

It is an arithmetic number, because the mean of its divisors is an integer number (6791638).

Almost surely, 2^129479276 is an apocalyptic number.

It is an amenable number.

129479276 is a deficient number, since it is larger than the sum of its proper divisors (115019692).

129479276 is a wasteful number, since it uses less digits than its factorization.

129479276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 625 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 129479276 is about 11378.8960800246. The cubic root of 129479276 is about 505.9024167771.

The spelling of 129479276 in words is "one hundred twenty-nine million, four hundred seventy-nine thousand, two hundred seventy-six".