213331135 has 8 divisors (see below), whose sum is σ = 256972320. Its totient is φ = 170014944.

The previous prime is 213331109. The next prime is 213331169. The reversal of 213331135 is 531133312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 213331135 - 2⁷ = 213331007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79800 + ... + 82429.

It is an arithmetic number, because the mean of its divisors is an integer number (32121540).

Almost surely, 2^213331135 is an apocalyptic number.

213331135 is a deficient number, since it is larger than the sum of its proper divisors (43641185).

213331135 is a wasteful number, since it uses less digits than its factorization.

213331135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162497.

The product of its digits is 810, while the sum is 22.

The square root of 213331135 is about 14605.8596118133. The cubic root of 213331135 is about 597.5185804461.

Adding to 213331135 its reverse (531133312), we get a palindrome (744464447).

The spelling of 213331135 in words is "two hundred thirteen million, three hundred thirty-one thousand, one hundred thirty-five".