133011287 has 2 divisors, whose sum is σ = 133011288. Its totient is φ = 133011286.

The previous prime is 133011271. The next prime is 133011317. The reversal of 133011287 is 782110331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133011287 - 2⁴ = 133011271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133011217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66505643 + 66505644.

It is an arithmetic number, because the mean of its divisors is an integer number (66505644).

Almost surely, 2^133011287 is an apocalyptic number.

133011287 is a deficient number, since it is larger than the sum of its proper divisors (1).

133011287 is an equidigital number, since it uses as much as digits as its factorization.

133011287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 133011287 is about 11533.0519378003. The cubic root of 133011287 is about 510.4613114254.

The spelling of 133011287 in words is "one hundred thirty-three million, eleven thousand, two hundred eighty-seven".