133011449 has 2 divisors, whose sum is σ = 133011450. Its totient is φ = 133011448.

The previous prime is 133011413. The next prime is 133011467. The reversal of 133011449 is 944110331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81631225 + 51380224 = 9035^2 + 7168^2 .

It is a cyclic number.

It is not a de Polignac number, because 133011449 - 2¹⁶ = 132945913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133017449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66505724 + 66505725.

It is an arithmetic number, because the mean of its divisors is an integer number (66505725).

Almost surely, 2^133011449 is an apocalyptic number.

It is an amenable number.

133011449 is a deficient number, since it is larger than the sum of its proper divisors (1).

133011449 is an equidigital number, since it uses as much as digits as its factorization.

133011449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 133011449 is about 11533.0589610909. The cubic root of 133011449 is about 510.4615186627.

The spelling of 133011449 in words is "one hundred thirty-three million, eleven thousand, four hundred forty-nine".