129418214 has 8 divisors (see below), whose sum is σ = 194290488. Its totient is φ = 64654720.

The previous prime is 129418189. The next prime is 129418231. The reversal of 129418214 is 412814921.

It is a happy number.

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

It is a super-2 number, since 2×129418214² = 33498148229899592, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 24152 + ... + 29019.

It is an arithmetic number, because the mean of its divisors is an integer number (24286311).

Almost surely, 2^129418214 is an apocalyptic number.

129418214 is a deficient number, since it is larger than the sum of its proper divisors (64872274).

129418214 is a wasteful number, since it uses less digits than its factorization.

129418214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54390.

The product of its digits is 4608, while the sum is 32.

The square root of 129418214 is about 11376.2126386597. The cubic root of 129418214 is about 505.8228769678.

The spelling of 129418214 in words is "one hundred twenty-nine million, four hundred eighteen thousand, two hundred fourteen".