133322399 has 4 divisors (see below), whose sum is σ = 152368464. Its totient is φ = 114276336.

The previous prime is 133322389. The next prime is 133322437. The reversal of 133322399 is 993223331.

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 133322399 - 2⁴ = 133322383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133322339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9523022 + ... + 9523035.

It is an arithmetic number, because the mean of its divisors is an integer number (38092116).

Almost surely, 2^133322399 is an apocalyptic number.

133322399 is a deficient number, since it is larger than the sum of its proper divisors (19046065).

133322399 is an equidigital number, since it uses as much as digits as its factorization.

133322399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19046064.

The product of its digits is 26244, while the sum is 35.

The square root of 133322399 is about 11546.5319035631. The cubic root of 133322399 is about 510.8589894093.

It can be divided in two parts, 1333 and 22399, that added together give a palindrome (23732).

The spelling of 133322399 in words is "one hundred thirty-three million, three hundred twenty-two thousand, three hundred ninety-nine".