129046525 has 12 divisors (see below), whose sum is σ = 160828000. Its totient is φ = 102714480.

The previous prime is 129046523. The next prime is 129046543. The reversal of 129046525 is 525640921.

It is a happy number.

It is not a de Polignac number, because 129046525 - 2¹ = 129046523 is a prime.

It is a super-2 number, since 2×129046525² = 33306011229151250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129046523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7995 + ... + 17944.

Almost surely, 2^129046525 is an apocalyptic number.

It is an amenable number.

129046525 is a deficient number, since it is larger than the sum of its proper divisors (31781475).

129046525 is a wasteful number, since it uses less digits than its factorization.

129046525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26148 (or 26143 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 129046525 is about 11359.8646558839. The cubic root of 129046525 is about 505.3381716901.

The spelling of 129046525 in words is "one hundred twenty-nine million, forty-six thousand, five hundred twenty-five".