133003213 has 8 divisors (see below), whose sum is σ = 152100032. Its totient is φ = 113930496.

The previous prime is 133003207. The next prime is 133003231. The reversal of 133003213 is 312300331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133003213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133003253) 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, 7981 + ... + 18157.

It is an arithmetic number, because the mean of its divisors is an integer number (19012504).

Almost surely, 2^133003213 is an apocalyptic number.

It is an amenable number.

133003213 is a deficient number, since it is larger than the sum of its proper divisors (19096819).

133003213 is a wasteful number, since it uses less digits than its factorization.

133003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12051.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 133003213 is about 11532.7018950461. The cubic root of 133003213 is about 510.4509826076.

Adding to 133003213 its reverse (312300331), we get a palindrome (445303544).

The spelling of 133003213 in words is "one hundred thirty-three million, three thousand, two hundred thirteen".