129482639 has 32 divisors (see below), whose sum is σ = 157248000. Its totient is φ = 105068160.

The previous prime is 129482623. The next prime is 129482653. The reversal of 129482639 is 936284921.

It is a cyclic number.

It is not a de Polignac number, because 129482639 - 2⁴ = 129482623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129482639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129482609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 868937 + ... + 869085.

It is an arithmetic number, because the mean of its divisors is an integer number (4914000).

Almost surely, 2^129482639 is an apocalyptic number.

129482639 is a deficient number, since it is larger than the sum of its proper divisors (27765361).

129482639 is a wasteful number, since it uses less digits than its factorization.

129482639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335.

The product of its digits is 186624, while the sum is 44.

The square root of 129482639 is about 11379.0438526266. The cubic root of 129482639 is about 505.9067967189.

The spelling of 129482639 in words is "one hundred twenty-nine million, four hundred eighty-two thousand, six hundred thirty-nine".