133204613 has 8 divisors (see below), whose sum is σ = 140856576. Its totient is φ = 125762400.

The previous prime is 133204579. The next prime is 133204651. The reversal of 133204613 is 316402331.

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 133204613 - 2²⁶ = 66095749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133203613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51131 + ... + 53672.

It is an arithmetic number, because the mean of its divisors is an integer number (17607072).

Almost surely, 2^133204613 is an apocalyptic number.

It is an amenable number.

133204613 is a deficient number, since it is larger than the sum of its proper divisors (7651963).

133204613 is a wasteful number, since it uses less digits than its factorization.

133204613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104875.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 133204613 is about 11541.4302839813. The cubic root of 133204613 is about 510.7085026542.

Adding to 133204613 its reverse (316402331), we get a palindrome (449606944).

The spelling of 133204613 in words is "one hundred thirty-three million, two hundred four thousand, six hundred thirteen".