133366573 has 4 divisors (see below), whose sum is σ = 133404160. Its totient is φ = 133328988.

The previous prime is 133366553. The next prime is 133366579. The reversal of 133366573 is 375663331.

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 a de Polignac number, because none of the positive numbers 2^k-133366573 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 (133366579) 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, 12843 + ... + 20776.

It is an arithmetic number, because the mean of its divisors is an integer number (33351040).

Almost surely, 2^133366573 is an apocalyptic number.

It is an amenable number.

133366573 is a deficient number, since it is larger than the sum of its proper divisors (37587).

133366573 is an equidigital number, since it uses as much as digits as its factorization.

133366573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37586.

The product of its digits is 102060, while the sum is 37.

The square root of 133366573 is about 11548.4446138863. Note that the first 3 decimals coincide. The cubic root of 133366573 is about 510.9154045185.

The spelling of 133366573 in words is "one hundred thirty-three million, three hundred sixty-six thousand, five hundred seventy-three".