133264823 has 4 divisors (see below), whose sum is σ = 133356288. Its totient is φ = 133173360.

The previous prime is 133264811. The next prime is 133264837. The reversal of 133264823 is 328462331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133264823 - 2⁶ = 133264759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133264823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133264123) 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 in 3 ways as a sum of consecutive naturals, for example, 43511 + ... + 46472.

It is an arithmetic number, because the mean of its divisors is an integer number (33339072).

Almost surely, 2^133264823 is an apocalyptic number.

133264823 is a deficient number, since it is larger than the sum of its proper divisors (91465).

133264823 is an equidigital number, since it uses as much as digits as its factorization.

133264823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91464.

The product of its digits is 20736, while the sum is 32.

The square root of 133264823 is about 11544.0384181620. The cubic root of 133264823 is about 510.7854397470.

The spelling of 133264823 in words is "one hundred thirty-three million, two hundred sixty-four thousand, eight hundred twenty-three".