133263023 has 2 divisors, whose sum is σ = 133263024. Its totient is φ = 133263022.

The previous prime is 133263019. The next prime is 133263049. The reversal of 133263023 is 320362331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133263023 - 2² = 133263019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133263023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133263083) 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, 66631511 + 66631512.

It is an arithmetic number, because the mean of its divisors is an integer number (66631512).

Almost surely, 2^133263023 is an apocalyptic number.

133263023 is a deficient number, since it is larger than the sum of its proper divisors (1).

133263023 is an equidigital number, since it uses as much as digits as its factorization.

133263023 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 23.

The square root of 133263023 is about 11543.9604555802. The cubic root of 133263023 is about 510.7831400205.

The spelling of 133263023 in words is "one hundred thirty-three million, two hundred sixty-three thousand, twenty-three".