213225254 has 64 divisors (see below), whose sum is σ = 389670912. Its totient is φ = 86361600.

The previous prime is 213225217. The next prime is 213225269. The reversal of 213225254 is 452522312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614309 + ... + 614655.

It is an arithmetic number, because the mean of its divisors is an integer number (6088608).

Almost surely, 2^213225254 is an apocalyptic number.

213225254 is a deficient number, since it is larger than the sum of its proper divisors (176445658).

213225254 is a wasteful number, since it uses less digits than its factorization.

213225254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461.

The product of its digits is 4800, while the sum is 26.

The square root of 213225254 is about 14602.2345550262. The cubic root of 213225254 is about 597.4197101547.

Adding to 213225254 its reverse (452522312), we get a palindrome (665747566).

The spelling of 213225254 in words is "two hundred thirteen million, two hundred twenty-five thousand, two hundred fifty-four".