210313225 has 6 divisors (see below), whose sum is σ = 260788430. Its totient is φ = 168250560.

The previous prime is 210313199. The next prime is 210313237. The reversal of 210313225 is 522313012.

It can be written as a sum of positive squares in 3 ways, for example, as 46063369 + 164249856 = 6787^2 + 12816^2 .

It is not a de Polignac number, because 210313225 - 2⁵ = 210313193 is a prime.

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, 4206240 + ... + 4206289.

Almost surely, 2^210313225 is an apocalyptic number.

210313225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

210313225 is a deficient number, since it is larger than the sum of its proper divisors (50475205).

210313225 is an equidigital number, since it uses as much as digits as its factorization.

210313225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8412539 (or 8412534 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 210313225 is about 14502.1800085366. The cubic root of 210313225 is about 594.6875698911.

Adding to 210313225 its reverse (522313012), we get a palindrome (732626237).

The spelling of 210313225 in words is "two hundred ten million, three hundred thirteen thousand, two hundred twenty-five".