133312337 has 2 divisors, whose sum is σ = 133312338. Its totient is φ = 133312336.

The previous prime is 133312297. The next prime is 133312343. The reversal of 133312337 is 733213331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92467456 + 40844881 = 9616^2 + 6391^2 .

It is a cyclic number.

It is not a de Polignac number, because 133312337 - 2¹⁰ = 133311313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133312357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66656168 + 66656169.

It is an arithmetic number, because the mean of its divisors is an integer number (66656169).

Almost surely, 2^133312337 is an apocalyptic number.

It is an amenable number.

133312337 is a deficient number, since it is larger than the sum of its proper divisors (1).

133312337 is an equidigital number, since it uses as much as digits as its factorization.

133312337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 26.

The square root of 133312337 is about 11546.0961800948. The cubic root of 133312337 is about 510.8461373742.

Adding to 133312337 its reverse (733213331), we get a palindrome (866525668).

The spelling of 133312337 in words is "one hundred thirty-three million, three hundred twelve thousand, three hundred thirty-seven".