213223132 has 12 divisors (see below), whose sum is σ = 374416056. Its totient is φ = 106247120.

The previous prime is 213223123. The next prime is 213223139. The reversal of 213223132 is 231322312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213223139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89794 + ... + 92137.

It is an arithmetic number, because the mean of its divisors is an integer number (31201338).

Almost surely, 2^213223132 is an apocalyptic number.

It is an amenable number.

213223132 is a deficient number, since it is larger than the sum of its proper divisors (161192924).

213223132 is a wasteful number, since it uses less digits than its factorization.

213223132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182228 (or 182226 counting only the distinct ones).

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

The square root of 213223132 is about 14602.1618947333. The cubic root of 213223132 is about 597.4177283244.

Adding to 213223132 its reverse (231322312), we get a palindrome (444545444).

The spelling of 213223132 in words is "two hundred thirteen million, two hundred twenty-three thousand, one hundred thirty-two".