129705053 has 8 divisors (see below), whose sum is σ = 137491200. Its totient is φ = 121936320.

The previous prime is 129705049. The next prime is 129705127. The reversal of 129705053 is 350507921.

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

It is a cyclic number.

It is not a de Polignac number, because 129705053 - 2² = 129705049 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 (129705253) 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, 12998 + ... + 20696.

It is an arithmetic number, because the mean of its divisors is an integer number (17186400).

Almost surely, 2^129705053 is an apocalyptic number.

It is an amenable number.

129705053 is a deficient number, since it is larger than the sum of its proper divisors (7786147).

129705053 is an equidigital number, since it uses as much as digits as its factorization.

129705053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8707.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 129705053 is about 11388.8126246769. The cubic root of 129705053 is about 506.1962985663.

The spelling of 129705053 in words is "one hundred twenty-nine million, seven hundred five thousand, fifty-three".