133316331 has 8 divisors (see below), whose sum is σ = 187110720. Its totient is φ = 84199752.

The previous prime is 133316327. The next prime is 133316347. The reversal of 133316331 is 133613331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133316331 - 2² = 133316327 is a prime.

It is a super-2 number, since 2×133316331² = 35546488222603122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133316311) 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 7 ways as a sum of consecutive naturals, for example, 1169385 + ... + 1169498.

It is an arithmetic number, because the mean of its divisors is an integer number (23388840).

Almost surely, 2^133316331 is an apocalyptic number.

133316331 is a deficient number, since it is larger than the sum of its proper divisors (53794389).

133316331 is a wasteful number, since it uses less digits than its factorization.

133316331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338905.

The product of its digits is 1458, while the sum is 24.

The square root of 133316331 is about 11546.2691376912. The cubic root of 133316331 is about 510.8512389253.

Adding to 133316331 its reverse (133613331), we get a palindrome (266929662).

The spelling of 133316331 in words is "one hundred thirty-three million, three hundred sixteen thousand, three hundred thirty-one".