133021267 has 2 divisors, whose sum is σ = 133021268. Its totient is φ = 133021266.

The previous prime is 133021249. The next prime is 133021271. The reversal of 133021267 is 762120331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133021267 - 2¹¹ = 133019219 is a prime.

It is not a weakly prime, because it can be changed into another prime (133021237) 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, 66510633 + 66510634.

It is an arithmetic number, because the mean of its divisors is an integer number (66510634).

Almost surely, 2^133021267 is an apocalyptic number.

133021267 is a deficient number, since it is larger than the sum of its proper divisors (1).

133021267 is an equidigital number, since it uses as much as digits as its factorization.

133021267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 133021267 is about 11533.4845992007. The cubic root of 133021267 is about 510.4740779522.

Adding to 133021267 its reverse (762120331), we get a palindrome (895141598).

The spelling of 133021267 in words is "one hundred thirty-three million, twenty-one thousand, two hundred sixty-seven".