133546313 has 4 divisors (see below), whose sum is σ = 134217600. Its totient is φ = 132875028.

The previous prime is 133546297. The next prime is 133546319. The reversal of 133546313 is 313645331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133546313 - 2⁴ = 133546297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133546319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335345 + ... + 335742.

It is an arithmetic number, because the mean of its divisors is an integer number (33554400).

Almost surely, 2^133546313 is an apocalyptic number.

It is an amenable number.

133546313 is a deficient number, since it is larger than the sum of its proper divisors (671287).

133546313 is an equidigital number, since it uses as much as digits as its factorization.

133546313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671286.

The product of its digits is 9720, while the sum is 29.

The square root of 133546313 is about 11556.2239940216. The cubic root of 133546313 is about 511.1448241030.

The spelling of 133546313 in words is "one hundred thirty-three million, five hundred forty-six thousand, three hundred thirteen".