129338963 has 8 divisors (see below), whose sum is σ = 139387248. Its totient is φ = 119304864.

The previous prime is 129338933. The next prime is 129338981. The reversal of 129338963 is 369833921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129338963 - 2²⁰ = 128290387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129338933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22556 + ... + 27702.

It is an arithmetic number, because the mean of its divisors is an integer number (17423406).

Almost surely, 2^129338963 is an apocalyptic number.

129338963 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

129338963 is a deficient number, since it is larger than the sum of its proper divisors (10048285).

129338963 is a wasteful number, since it uses less digits than its factorization.

129338963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7093.

The product of its digits is 209952, while the sum is 44.

The square root of 129338963 is about 11372.7289161397. The cubic root of 129338963 is about 505.7196067171.

The spelling of 129338963 in words is "one hundred twenty-nine million, three hundred thirty-eight thousand, nine hundred sixty-three".