129026653 has 8 divisors (see below), whose sum is σ = 150468800. Its totient is φ = 110593980.

The previous prime is 129026641. The next prime is 129026669. The reversal of 129026653 is 356620921.

It is not a de Polignac number, because 129026653 - 2⁵ = 129026621 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 (129026603) 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, 187743 + ... + 188428.

It is an arithmetic number, because the mean of its divisors is an integer number (18808600).

Almost surely, 2^129026653 is an apocalyptic number.

It is an amenable number.

129026653 is a deficient number, since it is larger than the sum of its proper divisors (21442147).

129026653 is an frugal number, since it uses more digits than its factorization.

129026653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376192 (or 376178 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 129026653 is about 11358.9899639008. The cubic root of 129026653 is about 505.3122311862.

The spelling of 129026653 in words is "one hundred twenty-nine million, twenty-six thousand, six hundred fifty-three".