133403303 has 8 divisors (see below), whose sum is σ = 146100240. Its totient is φ = 120801280.

The previous prime is 133403297. The next prime is 133403353. The reversal of 133403303 is 303304331.

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

It is a cyclic number.

It is not a de Polignac number, because 133403303 - 2¹⁸ = 133141159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133403353) 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 7 ways as a sum of consecutive naturals, for example, 20768 + ... + 26421.

It is an arithmetic number, because the mean of its divisors is an integer number (18262530).

Almost surely, 2^133403303 is an apocalyptic number.

133403303 is a deficient number, since it is larger than the sum of its proper divisors (12696937).

133403303 is a wasteful number, since it uses less digits than its factorization.

133403303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47457.

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 133403303 is about 11550.0347618525. The cubic root of 133403303 is about 510.9623033276.

Adding to 133403303 its reverse (303304331), we get a palindrome (436707634).

The spelling of 133403303 in words is "one hundred thirty-three million, four hundred three thousand, three hundred three".