133346213 has 16 divisors (see below), whose sum is σ = 179039616. Its totient is φ = 95912640.

The previous prime is 133346197. The next prime is 133346219. The reversal of 133346213 is 312643331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133346213 - 2⁴ = 133346197 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133346219) 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 15 ways as a sum of consecutive naturals, for example, 65606 + ... + 67607.

It is an arithmetic number, because the mean of its divisors is an integer number (11189976).

Almost surely, 2^133346213 is an apocalyptic number.

133346213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

133346213 is a deficient number, since it is larger than the sum of its proper divisors (45693403).

133346213 is a wasteful number, since it uses less digits than its factorization.

133346213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133244.

The product of its digits is 3888, while the sum is 26.

The square root of 133346213 is about 11547.5630762512. The cubic root of 133346213 is about 510.8894040828.

Adding to 133346213 its reverse (312643331), we get a palindrome (445989544).

The spelling of 133346213 in words is "one hundred thirty-three million, three hundred forty-six thousand, two hundred thirteen".