129816214 has 16 divisors (see below), whose sum is σ = 213080256. Its totient is φ = 58825800.

The previous prime is 129816179. The next prime is 129816223. The reversal of 129816214 is 412618921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 129816214.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1632 + ... + 16195.

It is an arithmetic number, because the mean of its divisors is an integer number (13317516).

Almost surely, 2^129816214 is an apocalyptic number.

129816214 is a deficient number, since it is larger than the sum of its proper divisors (83264042).

129816214 is a wasteful number, since it uses less digits than its factorization.

129816214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18171.

The product of its digits is 6912, while the sum is 34.

The square root of 129816214 is about 11393.6918511956. The cubic root of 129816214 is about 506.3408655879.

The spelling of 129816214 in words is "one hundred twenty-nine million, eight hundred sixteen thousand, two hundred fourteen".