133766213 has 8 divisors (see below), whose sum is σ = 160921920. Its totient is φ = 108622080.

The previous prime is 133766207. The next prime is 133766221. The reversal of 133766213 is 312667331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133766213 - 2¹⁰ = 133765189 is a prime.

It is a super-2 number, since 2×133766213² = 35786799480722738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133766213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133766273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502748 + ... + 503013.

It is an arithmetic number, because the mean of its divisors is an integer number (20115240).

Almost surely, 2^133766213 is an apocalyptic number.

It is an amenable number.

133766213 is a deficient number, since it is larger than the sum of its proper divisors (27155707).

133766213 is a wasteful number, since it uses less digits than its factorization.

133766213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005787.

The product of its digits is 13608, while the sum is 32.

The square root of 133766213 is about 11565.7344340945. The cubic root of 133766213 is about 511.4252239805.

The spelling of 133766213 in words is "one hundred thirty-three million, seven hundred sixty-six thousand, two hundred thirteen".