129841219 has 4 divisors (see below), whose sum is σ = 133008120. Its totient is φ = 126674320.

The previous prime is 129841211. The next prime is 129841247. The reversal of 129841219 is 912148921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 129841219 - 2³ = 129841211 is a prime.

It is a super-2 number, since 2×129841219² = 33717484302811922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129841211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583389 + ... + 1583470.

It is an arithmetic number, because the mean of its divisors is an integer number (33252030).

Almost surely, 2^129841219 is an apocalyptic number.

129841219 is a deficient number, since it is larger than the sum of its proper divisors (3166901).

129841219 is an equidigital number, since it uses as much as digits as its factorization.

129841219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166900.

The product of its digits is 10368, while the sum is 37.

The square root of 129841219 is about 11394.7891160828. The cubic root of 129841219 is about 506.3733737010.

The spelling of 129841219 in words is "one hundred twenty-nine million, eight hundred forty-one thousand, two hundred nineteen".