129383496 has 48 divisors (see below), whose sum is σ = 382271760. Its totient is φ = 39206880.

The previous prime is 129383477. The next prime is 129383497. The reversal of 129383496 is 694383921.

It is a happy number.

129383496 is a `hidden beast` number, since 129 + 38 + 3 + 496 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (129383497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80890 + ... + 82473.

It is an arithmetic number, because the mean of its divisors is an integer number (7963995).

Almost surely, 2^129383496 is an apocalyptic number.

It is an amenable number.

129383496 is an abundant number, since it is smaller than the sum of its proper divisors (252888264).

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

129383496 is a wasteful number, since it uses less digits than its factorization.

129383496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163386 (or 163379 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 129383496 is about 11374.6866330462. The cubic root of 129383496 is about 505.7776418893. Note that the first 3 decimals are identical.

The spelling of 129383496 in words is "one hundred twenty-nine million, three hundred eighty-three thousand, four hundred ninety-six".