133344353 has 4 divisors (see below), whose sum is σ = 135530388. Its totient is φ = 131158320.

The previous prime is 133344347. The next prime is 133344377. The reversal of 133344353 is 353443331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 353443331 = 1223 ⋅288997.

It can be written as a sum of positive squares in 2 ways, for example, as 40857664 + 92486689 = 6392^2 + 9617^2 .

It is a cyclic number.

It is not a de Polignac number, because 133344353 - 2⁸ = 133344097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133344313) 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, 1092926 + ... + 1093047.

It is an arithmetic number, because the mean of its divisors is an integer number (33882597).

Almost surely, 2^133344353 is an apocalyptic number.

It is an amenable number.

133344353 is a deficient number, since it is larger than the sum of its proper divisors (2186035).

133344353 is an equidigital number, since it uses as much as digits as its factorization.

133344353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186034.

The product of its digits is 19440, while the sum is 29.

The square root of 133344353 is about 11547.4825394975. The cubic root of 133344353 is about 510.8870286655.

Adding to 133344353 its reverse (353443331), we get a palindrome (486787684).

The spelling of 133344353 in words is "one hundred thirty-three million, three hundred forty-four thousand, three hundred fifty-three".