129230996 has 12 divisors (see below), whose sum is σ = 231413952. Its totient is φ = 63112728.

The previous prime is 129230987. The next prime is 129231023. The reversal of 129230996 is 699032921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375500 + ... + 375843.

It is an arithmetic number, because the mean of its divisors is an integer number (19284496).

Almost surely, 2^129230996 is an apocalyptic number.

It is an amenable number.

129230996 is a deficient number, since it is larger than the sum of its proper divisors (102182956).

129230996 is a wasteful number, since it uses less digits than its factorization.

129230996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751390 (or 751388 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 129230996 is about 11367.9811752131. The cubic root of 129230996 is about 505.5788493679.

The spelling of 129230996 in words is "one hundred twenty-nine million, two hundred thirty thousand, nine hundred ninety-six".