129930253 has 4 divisors (see below), whose sum is σ = 130064220. Its totient is φ = 129796288.

The previous prime is 129930247. The next prime is 129930263. The reversal of 129930253 is 352039921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61669609 + 68260644 = 7853^2 + 8262^2 .

It is a cyclic number.

It is not a de Polignac number, because 129930253 - 2⁵ = 129930221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129930223) 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, 65518 + ... + 67471.

It is an arithmetic number, because the mean of its divisors is an integer number (32516055).

Almost surely, 2^129930253 is an apocalyptic number.

It is an amenable number.

129930253 is a deficient number, since it is larger than the sum of its proper divisors (133967).

129930253 is an equidigital number, since it uses as much as digits as its factorization.

129930253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133966.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 129930253 is about 11398.6952323501. The cubic root of 129930253 is about 506.4890897687.

The spelling of 129930253 in words is "one hundred twenty-nine million, nine hundred thirty thousand, two hundred fifty-three".