129452496 has 20 divisors (see below), whose sum is σ = 334419072. Its totient is φ = 43150816.

The previous prime is 129452483. The next prime is 129452551. The reversal of 129452496 is 694254921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348416 + ... + 1348511.

Almost surely, 2^129452496 is an apocalyptic number.

129452496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129452496 is an abundant number, since it is smaller than the sum of its proper divisors (204966576).

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

129452496 is a wasteful number, since it uses less digits than its factorization.

129452496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696938 (or 2696932 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 129452496 is about 11377.7192793635. The cubic root of 129452496 is about 505.8675360320.

The spelling of 129452496 in words is "one hundred twenty-nine million, four hundred fifty-two thousand, four hundred ninety-six".