133594369 has 2 divisors, whose sum is σ = 133594370. Its totient is φ = 133594368.

The previous prime is 133594367. The next prime is 133594403. The reversal of 133594369 is 963495331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96530625 + 37063744 = 9825^2 + 6088^2 .

It is an emirp because it is prime and its reverse (963495331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133594369 - 2¹ = 133594367 is a prime.

It is a super-2 number, since 2×133594369² = 35694910857016322, which contains 22 as substring.

Together with 133594367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (133594361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66797184 + 66797185.

It is an arithmetic number, because the mean of its divisors is an integer number (66797185).

Almost surely, 2^133594369 is an apocalyptic number.

It is an amenable number.

133594369 is a deficient number, since it is larger than the sum of its proper divisors (1).

133594369 is an equidigital number, since it uses as much as digits as its factorization.

133594369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 43.

The square root of 133594369 is about 11558.3030328851. The cubic root of 133594369 is about 511.2061277545.

The spelling of 133594369 in words is "one hundred thirty-three million, five hundred ninety-four thousand, three hundred sixty-nine".