129418411 has 2 divisors, whose sum is σ = 129418412. Its totient is φ = 129418410.

The previous prime is 129418409. The next prime is 129418441. The reversal of 129418411 is 114814921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129418411 - 2¹ = 129418409 is a prime.

Together with 129418409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (129418441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64709205 + 64709206.

It is an arithmetic number, because the mean of its divisors is an integer number (64709206).

Almost surely, 2^129418411 is an apocalyptic number.

129418411 is a deficient number, since it is larger than the sum of its proper divisors (1).

129418411 is an equidigital number, since it uses as much as digits as its factorization.

129418411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 31.

The square root of 129418411 is about 11376.2212970740. The cubic root of 129418411 is about 505.8231336217.

The spelling of 129418411 in words is "one hundred twenty-nine million, four hundred eighteen thousand, four hundred eleven".