129675814 has 8 divisors (see below), whose sum is σ = 196976160. Its totient is φ = 64017096.

The previous prime is 129675809. The next prime is 129675823. The reversal of 129675814 is 418576921.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410209 + ... + 410524.

It is an arithmetic number, because the mean of its divisors is an integer number (24622020).

Almost surely, 2^129675814 is an apocalyptic number.

129675814 is a deficient number, since it is larger than the sum of its proper divisors (67300346).

129675814 is an equidigital number, since it uses as much as digits as its factorization.

129675814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820814.

The product of its digits is 120960, while the sum is 43.

The square root of 129675814 is about 11387.5288803146. The cubic root of 129675814 is about 506.1582589641.

It can be divided in two parts, 12967 and 5814, that added together give a palindrome (18781).

The spelling of 129675814 in words is "one hundred twenty-nine million, six hundred seventy-five thousand, eight hundred fourteen".