133013313 has 8 divisors (see below), whose sum is σ = 197056800. Its totient is φ = 88675524.

The previous prime is 133013311. The next prime is 133013351. The reversal of 133013313 is 313310331.

133013313 is a `hidden beast` number, since 1 + 330 + 1 + 331 + 3 = 666.

It is not a de Polignac number, because 133013313 - 2¹ = 133013311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133013311) 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, 2463183 + ... + 2463236.

It is an arithmetic number, because the mean of its divisors is an integer number (24632100).

Almost surely, 2^133013313 is an apocalyptic number.

It is an amenable number.

133013313 is a deficient number, since it is larger than the sum of its proper divisors (64043487).

133013313 is an equidigital number, since it uses as much as digits as its factorization.

133013313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926428 (or 4926422 counting only the distinct ones).

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

The square root of 133013313 is about 11533.1397719788. The cubic root of 133013313 is about 510.4639031587.

Adding to 133013313 its reverse (313310331), we get a palindrome (446323644).

The spelling of 133013313 in words is "one hundred thirty-three million, thirteen thousand, three hundred thirteen".