133013249 has 2 divisors, whose sum is σ = 133013250. Its totient is φ = 133013248.

The previous prime is 133013213. The next prime is 133013267. The reversal of 133013249 is 942310331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128142400 + 4870849 = 11320^2 + 2207^2 .

It is an emirp because it is prime and its reverse (942310331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133013249 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (133013549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66506624 + 66506625.

It is an arithmetic number, because the mean of its divisors is an integer number (66506625).

Almost surely, 2^133013249 is an apocalyptic number.

It is an amenable number.

133013249 is a deficient number, since it is larger than the sum of its proper divisors (1).

133013249 is an equidigital number, since it uses as much as digits as its factorization.

133013249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 133013249 is about 11533.1369973655. The cubic root of 133013249 is about 510.4638212880.

The spelling of 133013249 in words is "one hundred thirty-three million, thirteen thousand, two hundred forty-nine".