129513792 has 28 divisors (see below), whose sum is σ = 342672416. Its totient is φ = 43171200.

The previous prime is 129513733. The next prime is 129513799. The reversal of 129513792 is 297315921.

It is a super-4 number, since 4×129513792⁴ (a number of 34 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 129513792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129513799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337084 + ... + 337467.

Almost surely, 2^129513792 is an apocalyptic number.

129513792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129513792 is an abundant number, since it is smaller than the sum of its proper divisors (213158624).

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

129513792 is an equidigital number, since it uses as much as digits as its factorization.

129513792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674566 (or 674556 counting only the distinct ones).

The product of its digits is 34020, while the sum is 39.

The square root of 129513792 is about 11380.4126462971. The cubic root of 129513792 is about 505.9473665095.

It can be divided in two parts, 129513 and 792, that added together give a triangular number (130305 = T₅₁₀).

The spelling of 129513792 in words is "one hundred twenty-nine million, five hundred thirteen thousand, seven hundred ninety-two".