213013133 has 4 divisors (see below), whose sum is σ = 214423968. Its totient is φ = 211602300.

The previous prime is 213013117. The next prime is 213013147. The reversal of 213013133 is 331310312.

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 not a de Polignac number, because 213013133 - 2⁴ = 213013117 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 (213013103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705191 + ... + 705492.

It is an arithmetic number, because the mean of its divisors is an integer number (53605992).

Almost surely, 2^213013133 is an apocalyptic number.

It is an amenable number.

213013133 is a deficient number, since it is larger than the sum of its proper divisors (1410835).

213013133 is a wasteful number, since it uses less digits than its factorization.

213013133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410834.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 213013133 is about 14594.9694415576. The cubic root of 213013133 is about 597.2215358293.

Adding to 213013133 its reverse (331310312), we get a palindrome (544323445).

The spelling of 213013133 in words is "two hundred thirteen million, thirteen thousand, one hundred thirty-three".