129625536 has 28 divisors (see below), whose sum is σ = 342968072. Its totient is φ = 43208448.

The previous prime is 129625523. The next prime is 129625547. The reversal of 129625536 is 635526921.

It is a junction number, because it is equal to n+sod(n) for n = 129625494 and 129625503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337375 + ... + 337758.

Almost surely, 2^129625536 is an apocalyptic number.

129625536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129625536 is an abundant number, since it is smaller than the sum of its proper divisors (213342536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129625536 is an equidigital number, since it uses as much as digits as its factorization.

129625536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675148 (or 675138 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 129625536 is about 11385.3210758415. The cubic root of 129625536 is about 506.0928344929.

The spelling of 129625536 in words is "one hundred twenty-nine million, six hundred twenty-five thousand, five hundred thirty-six".