213100533 has 12 divisors (see below), whose sum is σ = 308194848. Its totient is φ = 141890280.

The previous prime is 213100529. The next prime is 213100549. The reversal of 213100533 is 335001312.

213100533 is a `hidden beast` number, since 2 + 131 + 0 + 0 + 533 = 666.

It is not a de Polignac number, because 213100533 - 2² = 213100529 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213100553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6873 + ... + 21758.

It is an arithmetic number, because the mean of its divisors is an integer number (25682904).

Almost surely, 2^213100533 is an apocalyptic number.

It is an amenable number.

213100533 is a deficient number, since it is larger than the sum of its proper divisors (95094315).

213100533 is a wasteful number, since it uses less digits than its factorization.

213100533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29464 (or 29461 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 213100533 is about 14597.9633168466. The cubic root of 213100533 is about 597.3032053243.

Adding to 213100533 its reverse (335001312), we get a palindrome (548101845).

The spelling of 213100533 in words is "two hundred thirteen million, one hundred thousand, five hundred thirty-three".