133321327 has 4 divisors (see below), whose sum is σ = 141163776. Its totient is φ = 125478880.

The previous prime is 133321319. The next prime is 133321333. The reversal of 133321327 is 723123331.

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 133321327 - 2³ = 133321319 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 (133321337) 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 in 3 ways as a sum of consecutive naturals, for example, 3921199 + ... + 3921232.

It is an arithmetic number, because the mean of its divisors is an integer number (35290944).

Almost surely, 2^133321327 is an apocalyptic number.

133321327 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

133321327 is a deficient number, since it is larger than the sum of its proper divisors (7842449).

133321327 is an equidigital number, since it uses as much as digits as its factorization.

133321327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7842448.

The product of its digits is 2268, while the sum is 25.

The square root of 133321327 is about 11546.4854826047. The cubic root of 133321327 is about 510.8576201913.

Adding to 133321327 its reverse (723123331), we get a palindrome (856444658).

The spelling of 133321327 in words is "one hundred thirty-three million, three hundred twenty-one thousand, three hundred twenty-seven".