129848219 has 2 divisors, whose sum is σ = 129848220. Its totient is φ = 129848218.

The previous prime is 129848209. The next prime is 129848221. The reversal of 129848219 is 912848921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129848219 is a prime.

It is a super-2 number, since 2×129848219² = 33721119954943922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 129848221, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129848219.

It is not a weakly prime, because it can be changed into another prime (129848209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64924109 + 64924110.

It is an arithmetic number, because the mean of its divisors is an integer number (64924110).

Almost surely, 2^129848219 is an apocalyptic number.

129848219 is a deficient number, since it is larger than the sum of its proper divisors (1).

129848219 is an equidigital number, since it uses as much as digits as its factorization.

129848219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 44.

The square root of 129848219 is about 11395.0962698873. The cubic root of 129848219 is about 506.3824734048.

The spelling of 129848219 in words is "one hundred twenty-nine million, eight hundred forty-eight thousand, two hundred nineteen".