129038496 has 24 divisors (see below), whose sum is σ = 338726304. Its totient is φ = 43012800.

The previous prime is 129038491. The next prime is 129038501. The reversal of 129038496 is 694830921.

It is an interprime number because it is at equal distance from previous prime (129038491) and next prime (129038501).

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (129038491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671980 + ... + 672171.

It is an arithmetic number, because the mean of its divisors is an integer number (14113596).

Almost surely, 2^129038496 is an apocalyptic number.

129038496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129038496 is an abundant number, since it is smaller than the sum of its proper divisors (209687808).

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

129038496 is a wasteful number, since it uses less digits than its factorization.

129038496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344164 (or 1344156 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 129038496 is about 11359.5112570920. The cubic root of 129038496 is about 505.3276911177.

The spelling of 129038496 in words is "one hundred twenty-nine million, thirty-eight thousand, four hundred ninety-six".