129253103 has 8 divisors (see below), whose sum is σ = 147793920. Its totient is φ = 110731320.

The previous prime is 129253097. The next prime is 129253133. The reversal of 129253103 is 301352921.

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

It is not a de Polignac number, because 129253103 - 2⁶ = 129253039 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 (129253133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15638 + ... + 22428.

It is an arithmetic number, because the mean of its divisors is an integer number (18474240).

Almost surely, 2^129253103 is an apocalyptic number.

129253103 is a deficient number, since it is larger than the sum of its proper divisors (18540817).

129253103 is an equidigital number, since it uses as much as digits as its factorization.

129253103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9517.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 129253103 is about 11368.9534698670. The cubic root of 129253103 is about 505.6076768028.

The spelling of 129253103 in words is "one hundred twenty-nine million, two hundred fifty-three thousand, one hundred three".