133401303 has 16 divisors (see below), whose sum is σ = 225864960. Its totient is φ = 76229208.

The previous prime is 133401293. The next prime is 133401313. The reversal of 133401303 is 303104331.

It is an interprime number because it is at equal distance from previous prime (133401293) and next prime (133401313).

It is not a de Polignac number, because 133401303 - 2⁵ = 133401271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133401313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352725 + ... + 353102.

It is an arithmetic number, because the mean of its divisors is an integer number (14116560).

Almost surely, 2^133401303 is an apocalyptic number.

133401303 is a deficient number, since it is larger than the sum of its proper divisors (92463657).

133401303 is an equidigital number, since it uses as much as digits as its factorization.

133401303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705843 (or 705837 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 133401303 is about 11549.9481817019. The cubic root of 133401303 is about 510.9597498433.

Adding to 133401303 its reverse (303104331), we get a palindrome (436505634).

The spelling of 133401303 in words is "one hundred thirty-three million, four hundred one thousand, three hundred three".