129036479 has 32 divisors (see below), whose sum is σ = 157538304. Its totient is φ = 104129280.

The previous prime is 129036473. The next prime is 129036487. The reversal of 129036479 is 974630921.

It is a cyclic number.

It is not a de Polignac number, because 129036479 - 2⁸ = 129036223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129036473) 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 31 ways as a sum of consecutive naturals, for example, 490502 + ... + 490764.

It is an arithmetic number, because the mean of its divisors is an integer number (4923072).

Almost surely, 2^129036479 is an apocalyptic number.

129036479 is a deficient number, since it is larger than the sum of its proper divisors (28501825).

129036479 is a wasteful number, since it uses less digits than its factorization.

129036479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 129036479 is about 11359.4224765170. The cubic root of 129036479 is about 505.3250581792.

The spelling of 129036479 in words is "one hundred twenty-nine million, thirty-six thousand, four hundred seventy-nine".