129702297 has 16 divisors (see below), whose sum is σ = 180584640. Its totient is φ = 82700352.

The previous prime is 129702277. The next prime is 129702301. The reversal of 129702297 is 792207921.

It is not a de Polignac number, because 129702297 - 2⁷ = 129702169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129702217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2343 + ... + 16275.

It is an arithmetic number, because the mean of its divisors is an integer number (11286540).

Almost surely, 2^129702297 is an apocalyptic number.

It is an amenable number.

129702297 is a deficient number, since it is larger than the sum of its proper divisors (50882343).

129702297 is a wasteful number, since it uses less digits than its factorization.

129702297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14072.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 129702297 is about 11388.6916281020. The cubic root of 129702297 is about 506.1927132861.

The spelling of 129702297 in words is "one hundred twenty-nine million, seven hundred two thousand, two hundred ninety-seven".