133313013 has 16 divisors (see below), whose sum is σ = 198531840. Its totient is φ = 88411392.

The previous prime is 133312957. The next prime is 133313057. The reversal of 133313013 is 310313331.

It is not a de Polignac number, because 133313013 - 2⁸ = 133312757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133313413) 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 15 ways as a sum of consecutive naturals, for example, 7581 + ... + 18002.

It is an arithmetic number, because the mean of its divisors is an integer number (12408240).

Almost surely, 2^133313013 is an apocalyptic number.

It is an amenable number.

133313013 is a deficient number, since it is larger than the sum of its proper divisors (65218827).

133313013 is a wasteful number, since it uses less digits than its factorization.

133313013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25785 (or 25779 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

The square root of 133313013 is about 11546.1254540214. The cubic root of 133313013 is about 510.8470008387.

Adding to 133313013 its reverse (310313331), we get a palindrome (443626344).

The spelling of 133313013 in words is "one hundred thirty-three million, three hundred thirteen thousand, thirteen".