129769112 has 24 divisors (see below), whose sum is σ = 267449700. Its totient is φ = 58985520.

The previous prime is 129769111. The next prime is 129769153. The reversal of 129769112 is 211967921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129769111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66062 + ... + 67997.

Almost surely, 2^129769112 is an apocalyptic number.

It is an amenable number.

129769112 is an abundant number, since it is smaller than the sum of its proper divisors (137680588).

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

129769112 is a wasteful number, since it uses less digits than its factorization.

129769112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134087 (or 134072 counting only the distinct ones).

The product of its digits is 13608, while the sum is 38.

The square root of 129769112 is about 11391.6246426925. The cubic root of 129769112 is about 506.2796186095.

The spelling of 129769112 in words is "one hundred twenty-nine million, seven hundred sixty-nine thousand, one hundred twelve".