129896293 has 8 divisors (see below), whose sum is σ = 141144320. Its totient is φ = 119089440.

The previous prime is 129896257. The next prime is 129896311. The reversal of 129896293 is 392698921.

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 129896293 - 2²¹ = 127799141 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 (129896213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109680 + ... + 110857.

It is an arithmetic number, because the mean of its divisors is an integer number (17643040).

Almost surely, 2^129896293 is an apocalyptic number.

It is an amenable number.

129896293 is a deficient number, since it is larger than the sum of its proper divisors (11248027).

129896293 is a wasteful number, since it uses less digits than its factorization.

129896293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220587.

The product of its digits is 419904, while the sum is 49.

The square root of 129896293 is about 11397.2054908210. The cubic root of 129896293 is about 506.4449587372. Note that the first 3 decimals are identical.

The spelling of 129896293 in words is "one hundred twenty-nine million, eight hundred ninety-six thousand, two hundred ninety-three".