213044252 has 12 divisors (see below), whose sum is σ = 375674376. Its totient is φ = 105708720.

The previous prime is 213044219. The next prime is 213044257. The reversal of 213044252 is 252440312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213044257) 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, 202763 + ... + 203810.

It is an arithmetic number, because the mean of its divisors is an integer number (31306198).

Almost surely, 2^213044252 is an apocalyptic number.

It is an amenable number.

213044252 is a deficient number, since it is larger than the sum of its proper divisors (162630124).

213044252 is a wasteful number, since it uses less digits than its factorization.

213044252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406708 (or 406706 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 213044252 is about 14596.0354891320. The cubic root of 213044252 is about 597.2506170285.

Adding to 213044252 its reverse (252440312), we get a palindrome (465484564).

The spelling of 213044252 in words is "two hundred thirteen million, forty-four thousand, two hundred fifty-two".