129528092 has 24 divisors (see below), whose sum is σ = 239186640. Its totient is φ = 61205760.

The previous prime is 129528089. The next prime is 129528103. The reversal of 129528092 is 290825921.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 33188 + ... + 36884.

It is an arithmetic number, because the mean of its divisors is an integer number (9966110).

Almost surely, 2^129528092 is an apocalyptic number.

It is an amenable number.

129528092 is a deficient number, since it is larger than the sum of its proper divisors (109658548).

129528092 is a wasteful number, since it uses less digits than its factorization.

129528092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181 (or 4179 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 129528092 is about 11381.0409014290. The cubic root of 129528092 is about 505.9659868715.

The spelling of 129528092 in words is "one hundred twenty-nine million, five hundred twenty-eight thousand, ninety-two".