133440341 has 2 divisors, whose sum is σ = 133440342. Its totient is φ = 133440340.

The previous prime is 133440331. The next prime is 133440343. The reversal of 133440341 is 143044331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131102500 + 2337841 = 11450^2 + 1529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133440341 is a prime.

Together with 133440343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133440343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66720170 + 66720171.

It is an arithmetic number, because the mean of its divisors is an integer number (66720171).

Almost surely, 2^133440341 is an apocalyptic number.

It is an amenable number.

133440341 is a deficient number, since it is larger than the sum of its proper divisors (1).

133440341 is an equidigital number, since it uses as much as digits as its factorization.

133440341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 133440341 is about 11551.6380223759. The cubic root of 133440341 is about 511.0095866911.

Adding to 133440341 its reverse (143044331), we get a palindrome (276484672).

The spelling of 133440341 in words is "one hundred thirty-three million, four hundred forty thousand, three hundred forty-one".