129046625 has 8 divisors (see below), whose sum is σ = 161050344. Its totient is φ = 103237200.

The previous prime is 129046597. The next prime is 129046637. The reversal of 129046625 is 526640921.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2798929 + 126247696 = 1673^2 + 11236^2 .

It is not a de Polignac number, because 129046625 - 2¹⁶ = 128981089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516062 + ... + 516311.

It is an arithmetic number, because the mean of its divisors is an integer number (20131293).

Almost surely, 2^129046625 is an apocalyptic number.

It is an amenable number.

129046625 is a deficient number, since it is larger than the sum of its proper divisors (32003719).

129046625 is an equidigital number, since it uses as much as digits as its factorization.

129046625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032388 (or 1032378 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 129046625 is about 11359.8690573439. The cubic root of 129046625 is about 505.3383022213.

The spelling of 129046625 in words is "one hundred twenty-nine million, forty-six thousand, six hundred twenty-five".