213314225 has 6 divisors (see below), whose sum is σ = 264509670. Its totient is φ = 170651360.

The previous prime is 213314219. The next prime is 213314239. The reversal of 213314225 is 522413312.

It can be written as a sum of positive squares in 3 ways, for example, as 63888049 + 149426176 = 7993^2 + 12224^2 .

It is a de Polignac number, because none of the positive numbers 2^k-213314225 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213314225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4266260 + ... + 4266309.

It is an arithmetic number, because the mean of its divisors is an integer number (44084945).

Almost surely, 2^213314225 is an apocalyptic number.

213314225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213314225 is a deficient number, since it is larger than the sum of its proper divisors (51195445).

213314225 is an equidigital number, since it uses as much as digits as its factorization.

213314225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8532579 (or 8532574 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 213314225 is about 14605.2807230810. The cubic root of 213314225 is about 597.5027923050.

Adding to 213314225 its reverse (522413312), we get a palindrome (735727537).

The spelling of 213314225 in words is "two hundred thirteen million, three hundred fourteen thousand, two hundred twenty-five".