129046492 has 12 divisors (see below), whose sum is σ = 226057216. Its totient is φ = 64458720.

The previous prime is 129046481. The next prime is 129046493. The reversal of 129046492 is 294640921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129046493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11484 + ... + 19747.

Almost surely, 2^129046492 is an apocalyptic number.

It is an amenable number.

129046492 is a deficient number, since it is larger than the sum of its proper divisors (97010724).

129046492 is a wasteful number, since it uses less digits than its factorization.

129046492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32268 (or 32266 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 129046492 is about 11359.8632034017. The cubic root of 129046492 is about 505.3381286148.

The spelling of 129046492 in words is "one hundred twenty-nine million, forty-six thousand, four hundred ninety-two".