133532369 has 2 divisors, whose sum is σ = 133532370. Its totient is φ = 133532368.

The previous prime is 133532353. The next prime is 133532381. The reversal of 133532369 is 963235331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84364225 + 49168144 = 9185^2 + 7012^2 .

It is a cyclic number.

It is not a de Polignac number, because 133532369 - 2⁴ = 133532353 is a prime.

It is a super-2 number, since 2×133532369² = 35661787141504322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133532669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66766184 + 66766185.

It is an arithmetic number, because the mean of its divisors is an integer number (66766185).

Almost surely, 2^133532369 is an apocalyptic number.

It is an amenable number.

133532369 is a deficient number, since it is larger than the sum of its proper divisors (1).

133532369 is an equidigital number, since it uses as much as digits as its factorization.

133532369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 35.

The square root of 133532369 is about 11555.6206670174. The cubic root of 133532369 is about 511.1270333922.

The spelling of 133532369 in words is "one hundred thirty-three million, five hundred thirty-two thousand, three hundred sixty-nine".