129092994 has 16 divisors (see below), whose sum is σ = 286873440. Its totient is φ = 43030980.

The previous prime is 129092993. The next prime is 129093047. The reversal of 129092994 is 499290921.

It is not an unprimeable number, because it can be changed into a prime (129092993) 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, 1195252 + ... + 1195359.

It is an arithmetic number, because the mean of its divisors is an integer number (17929590).

Almost surely, 2^129092994 is an apocalyptic number.

129092994 is an abundant number, since it is smaller than the sum of its proper divisors (157780446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129092994 is a wasteful number, since it uses less digits than its factorization.

129092994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390622 (or 2390616 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 129092994 is about 11361.9097866512. The cubic root of 129092994 is about 505.3988209828.

The spelling of 129092994 in words is "one hundred twenty-nine million, ninety-two thousand, nine hundred ninety-four".