129498325 has 12 divisors (see below), whose sum is σ = 175176288. Its totient is φ = 94180400.

The previous prime is 129498289. The next prime is 129498353. The reversal of 129498325 is 523894921.

It is not a de Polignac number, because 129498325 - 2¹¹ = 129496277 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 11 ways as a sum of consecutive naturals, for example, 235177 + ... + 235726.

It is an arithmetic number, because the mean of its divisors is an integer number (14598024).

Almost surely, 2^129498325 is an apocalyptic number.

It is an amenable number.

129498325 is a deficient number, since it is larger than the sum of its proper divisors (45677963).

129498325 is a wasteful number, since it uses less digits than its factorization.

129498325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470924 (or 470919 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 129498325 is about 11379.7330812282. The cubic root of 129498325 is about 505.9272250266.

The spelling of 129498325 in words is "one hundred twenty-nine million, four hundred ninety-eight thousand, three hundred twenty-five".