129419814 has 16 divisors (see below), whose sum is σ = 259114752. Its totient is φ = 43094088.

The previous prime is 129419791. The next prime is 129419831. The reversal of 129419814 is 418914921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5074 + ... + 16869.

It is an arithmetic number, because the mean of its divisors is an integer number (16194672).

Almost surely, 2^129419814 is an apocalyptic number.

129419814 is an abundant number, since it is smaller than the sum of its proper divisors (129694938).

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

129419814 is a wasteful number, since it uses less digits than its factorization.

129419814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22931.

The product of its digits is 20736, while the sum is 39.

The square root of 129419814 is about 11376.2829606159. The cubic root of 129419814 is about 505.8249614587.

The spelling of 129419814 in words is "one hundred twenty-nine million, four hundred nineteen thousand, eight hundred fourteen".