129046725 has 36 divisors (see below), whose sum is σ = 236074176. Its totient is φ = 67355040.

The previous prime is 129046717. The next prime is 129046733. The reversal of 129046725 is 527640921.

It is an interprime number because it is at equal distance from previous prime (129046717) and next prime (129046733).

It is not a de Polignac number, because 129046725 - 2³ = 129046717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129046725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4474 + ... + 16676.

It is an arithmetic number, because the mean of its divisors is an integer number (6557616).

Almost surely, 2^129046725 is an apocalyptic number.

129046725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129046725 is a deficient number, since it is larger than the sum of its proper divisors (107027451).

129046725 is a wasteful number, since it uses less digits than its factorization.

129046725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266 (or 12258 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 129046725 is about 11359.8734588023. The cubic root of 129046725 is about 505.3384327525.

The spelling of 129046725 in words is "one hundred twenty-nine million, forty-six thousand, seven hundred twenty-five".