129836383 has 2 divisors, whose sum is σ = 129836384. Its totient is φ = 129836382.

The previous prime is 129836353. The next prime is 129836411. The reversal of 129836383 is 383638921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129836383 - 2²⁵ = 96281951 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129836353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64918191 + 64918192.

It is an arithmetic number, because the mean of its divisors is an integer number (64918192).

Almost surely, 2^129836383 is an apocalyptic number.

129836383 is a deficient number, since it is larger than the sum of its proper divisors (1).

129836383 is an equidigital number, since it uses as much as digits as its factorization.

129836383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 129836383 is about 11394.5769118471. The cubic root of 129836383 is about 506.3670869146.

The spelling of 129836383 in words is "one hundred twenty-nine million, eight hundred thirty-six thousand, three hundred eighty-three".