129791253 has 8 divisors (see below), whose sum is σ = 173278048. Its totient is φ = 86415984.

The previous prime is 129791251. The next prime is 129791257. The reversal of 129791253 is 352197921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129791253 - 2¹ = 129791251 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129791251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25126 + ... + 29847.

It is an arithmetic number, because the mean of its divisors is an integer number (21659756).

Almost surely, 2^129791253 is an apocalyptic number.

It is an amenable number.

129791253 is a deficient number, since it is larger than the sum of its proper divisors (43486795).

129791253 is an equidigital number, since it uses as much as digits as its factorization.

129791253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55763.

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

The square root of 129791253 is about 11392.5964117053. The cubic root of 129791253 is about 506.3084105139.

The spelling of 129791253 in words is "one hundred twenty-nine million, seven hundred ninety-one thousand, two hundred fifty-three".