129513712 has 10 divisors (see below), whose sum is σ = 250932848. Its totient is φ = 64756848.

The previous prime is 129513689. The next prime is 129513719. The reversal of 129513712 is 217315921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129513719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4047288 + ... + 4047319.

Almost surely, 2^129513712 is an apocalyptic number.

It is an amenable number.

129513712 is a deficient number, since it is larger than the sum of its proper divisors (121419136).

129513712 is an equidigital number, since it uses as much as digits as its factorization.

129513712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094615 (or 8094609 counting only the distinct ones).

The product of its digits is 3780, while the sum is 31.

The square root of 129513712 is about 11380.4091314856. The cubic root of 129513712 is about 505.9472623358.

The spelling of 129513712 in words is "one hundred twenty-nine million, five hundred thirteen thousand, seven hundred twelve".