129124853 has 8 divisors (see below), whose sum is σ = 151699296. Its totient is φ = 108356400.

The previous prime is 129124841. The next prime is 129124883. The reversal of 129124853 is 358421921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129124853 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 (129124813) 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, 451343 + ... + 451628.

It is an arithmetic number, because the mean of its divisors is an integer number (18962412).

Almost surely, 2^129124853 is an apocalyptic number.

129124853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

129124853 is a deficient number, since it is larger than the sum of its proper divisors (22574443).

129124853 is a wasteful number, since it uses less digits than its factorization.

129124853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902995.

The product of its digits is 17280, while the sum is 35.

The square root of 129124853 is about 11363.3117091806. The cubic root of 129124853 is about 505.4403935375.

The spelling of 129124853 in words is "one hundred twenty-nine million, one hundred twenty-four thousand, eight hundred fifty-three".