213140233 has 8 divisors (see below), whose sum is σ = 225008000. Its totient is φ = 201337488.

The previous prime is 213140219. The next prime is 213140243. The reversal of 213140233 is 332041312.

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 213140233 - 2²¹ = 211043081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213140233.

It is not an unprimeable number, because it can be changed into a prime (213140243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9441 + ... + 22702.

It is an arithmetic number, because the mean of its divisors is an integer number (28126000).

Almost surely, 2^213140233 is an apocalyptic number.

It is an amenable number.

213140233 is a deficient number, since it is larger than the sum of its proper divisors (11867767).

213140233 is a wasteful number, since it uses less digits than its factorization.

213140233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32511.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213140233 is about 14599.3230322505. The cubic root of 213140233 is about 597.3402949623.

Adding to 213140233 its reverse (332041312), we get a palindrome (545181545).

The spelling of 213140233 in words is "two hundred thirteen million, one hundred forty thousand, two hundred thirty-three".