213134212 has 12 divisors (see below), whose sum is σ = 374437980. Its totient is φ = 106151936.

The previous prime is 213134189. The next prime is 213134227. The reversal of 213134212 is 212431312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 206037316 + 7096896 = 14354^2 + 2664^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213134212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102637 + ... + 104692.

It is an arithmetic number, because the mean of its divisors is an integer number (31203165).

Almost surely, 2^213134212 is an apocalyptic number.

It is an amenable number.

213134212 is a deficient number, since it is larger than the sum of its proper divisors (161303768).

213134212 is a wasteful number, since it uses less digits than its factorization.

213134212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207590 (or 207588 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 213134212 is about 14599.1168226027. The cubic root of 213134212 is about 597.3346701525.

Adding to 213134212 its reverse (212431312), we get a palindrome (425565524).

The spelling of 213134212 in words is "two hundred thirteen million, one hundred thirty-four thousand, two hundred twelve".