129930219 has 24 divisors (see below), whose sum is σ = 194946752. Its totient is φ = 83326320.

The previous prime is 129930211. The next prime is 129930221. The reversal of 129930219 is 912039921.

It is a happy number.

It is not a de Polignac number, because 129930219 - 2³ = 129930211 is a prime.

It is a super-2 number, since 2×129930219² = 33763723618775922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129930211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23424 + ... + 28434.

Almost surely, 2^129930219 is an apocalyptic number.

129930219 is a deficient number, since it is larger than the sum of its proper divisors (65016533).

129930219 is a wasteful number, since it uses less digits than its factorization.

129930219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127 (or 5124 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 129930219 is about 11398.6937409512. The cubic root of 129930219 is about 506.4890455895.

The spelling of 129930219 in words is "one hundred twenty-nine million, nine hundred thirty thousand, two hundred nineteen".