133495249 has 2 divisors, whose sum is σ = 133495250. Its totient is φ = 133495248.

The previous prime is 133495213. The next prime is 133495259. The reversal of 133495249 is 942594331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120121600 + 13373649 = 10960^2 + 3657^2 .

It is a cyclic number.

It is not a de Polignac number, because 133495249 - 2¹⁵ = 133462481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133495259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66747624 + 66747625.

It is an arithmetic number, because the mean of its divisors is an integer number (66747625).

Almost surely, 2^133495249 is an apocalyptic number.

It is an amenable number.

133495249 is a deficient number, since it is larger than the sum of its proper divisors (1).

133495249 is an equidigital number, since it uses as much as digits as its factorization.

133495249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 40.

The square root of 133495249 is about 11554.0144105847. The cubic root of 133495249 is about 511.0796671144.

The spelling of 133495249 in words is "one hundred thirty-three million, four hundred ninety-five thousand, two hundred forty-nine".