129338933 has 2 divisors, whose sum is σ = 129338934. Its totient is φ = 129338932.

The previous prime is 129338893. The next prime is 129338981. The reversal of 129338933 is 339833921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111555844 + 17783089 = 10562^2 + 4217^2 .

It is a cyclic number.

It is not a de Polignac number, because 129338933 - 2²² = 125144629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129338333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64669466 + 64669467.

It is an arithmetic number, because the mean of its divisors is an integer number (64669467).

Almost surely, 2^129338933 is an apocalyptic number.

It is an amenable number.

129338933 is a deficient number, since it is larger than the sum of its proper divisors (1).

129338933 is an equidigital number, since it uses as much as digits as its factorization.

129338933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 41.

The square root of 129338933 is about 11372.7275971950. The cubic root of 129338933 is about 505.7195676168.

The spelling of 129338933 in words is "one hundred twenty-nine million, three hundred thirty-eight thousand, nine hundred thirty-three".