129293412 has 24 divisors (see below), whose sum is σ = 301996800. Its totient is φ = 43053216.

The previous prime is 129293407. The next prime is 129293413. The reversal of 129293412 is 214392921.

It is not an unprimeable number, because it can be changed into a prime (129293413) 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, 7789 + ... + 17867.

It is an arithmetic number, because the mean of its divisors is an integer number (12583200).

Almost surely, 2^129293412 is an apocalyptic number.

129293412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129293412 is an abundant number, since it is smaller than the sum of its proper divisors (172703388).

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

129293412 is a wasteful number, since it uses less digits than its factorization.

129293412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11155 (or 11153 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 129293412 is about 11370.7260981874. The cubic root of 129293412 is about 505.6602311093.

The spelling of 129293412 in words is "one hundred twenty-nine million, two hundred ninety-three thousand, four hundred twelve".