129982333 has 4 divisors (see below), whose sum is σ = 139980988. Its totient is φ = 119983680.

The previous prime is 129982331. The next prime is 129982343. The reversal of 129982333 is 333289921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60793209 + 69189124 = 7797^2 + 8318^2 .

It is a cyclic number.

It is not a de Polignac number, because 129982333 - 2¹ = 129982331 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129982331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4999308 + ... + 4999333.

It is an arithmetic number, because the mean of its divisors is an integer number (34995247).

Almost surely, 2^129982333 is an apocalyptic number.

129982333 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

129982333 is a deficient number, since it is larger than the sum of its proper divisors (9998655).

129982333 is an equidigital number, since it uses as much as digits as its factorization.

129982333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9998654.

The product of its digits is 69984, while the sum is 40.

The square root of 129982333 is about 11400.9794754661. The cubic root of 129982333 is about 506.5567528100.

The spelling of 129982333 in words is "one hundred twenty-nine million, nine hundred eighty-two thousand, three hundred thirty-three".