129313814 has 16 divisors (see below), whose sum is σ = 226837248. Its totient is φ = 54131112.

The previous prime is 129313787. The next prime is 129313817. The reversal of 129313814 is 418313921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129313817) 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, 106802 + ... + 108005.

It is an arithmetic number, because the mean of its divisors is an integer number (14177328).

Almost surely, 2^129313814 is an apocalyptic number.

129313814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129313814 is a deficient number, since it is larger than the sum of its proper divisors (97523434).

129313814 is a wasteful number, since it uses less digits than its factorization.

129313814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214859.

The product of its digits is 5184, while the sum is 32.

The square root of 129313814 is about 11371.6231910840. The cubic root of 129313814 is about 505.6868267862.

The spelling of 129313814 in words is "one hundred twenty-nine million, three hundred thirteen thousand, eight hundred fourteen".