129229412 has 48 divisors (see below), whose sum is σ = 258484800. Its totient is φ = 56039040.

The previous prime is 129229409. The next prime is 129229487. The reversal of 129229412 is 214922921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136862 + ... + 137802.

It is an arithmetic number, because the mean of its divisors is an integer number (5385100).

Almost surely, 2^129229412 is an apocalyptic number.

It is an amenable number.

129229412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

129229412 is a wasteful number, since it uses less digits than its factorization.

129229412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1114 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 129229412 is about 11367.9115056373. The cubic root of 129229412 is about 505.5767837124.

The spelling of 129229412 in words is "one hundred twenty-nine million, two hundred twenty-nine thousand, four hundred twelve".