133203439 has 2 divisors, whose sum is σ = 133203440. Its totient is φ = 133203438.

The previous prime is 133203403. The next prime is 133203457. The reversal of 133203439 is 934302331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133203439 - 2¹⁵ = 133170671 is a prime.

It is a super-2 number, since 2×133203439² = 35486312322853442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133203139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66601719 + 66601720.

It is an arithmetic number, because the mean of its divisors is an integer number (66601720).

Almost surely, 2^133203439 is an apocalyptic number.

133203439 is a deficient number, since it is larger than the sum of its proper divisors (1).

133203439 is an equidigital number, since it uses as much as digits as its factorization.

133203439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 133203439 is about 11541.3794236218. The cubic root of 133203439 is about 510.7070022718.

The spelling of 133203439 in words is "one hundred thirty-three million, two hundred three thousand, four hundred thirty-nine".