133318303 has 2 divisors, whose sum is σ = 133318304. Its totient is φ = 133318302.

The previous prime is 133318291. The next prime is 133318313. The reversal of 133318303 is 303813331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133318303 - 2²¹ = 131221151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133318313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66659151 + 66659152.

It is an arithmetic number, because the mean of its divisors is an integer number (66659152).

Almost surely, 2^133318303 is an apocalyptic number.

133318303 is a deficient number, since it is larger than the sum of its proper divisors (1).

133318303 is an equidigital number, since it uses as much as digits as its factorization.

133318303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 133318303 is about 11546.3545329251. The cubic root of 133318303 is about 510.8537577307.

The spelling of 133318303 in words is "one hundred thirty-three million, three hundred eighteen thousand, three hundred three".