307225 has 6 divisors (see below), whose sum is σ = 380990. Its totient is φ = 245760.

The previous prime is 307201. The next prime is 307243. The reversal of 307225 is 522703.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 50176 + 257049 = 224^2 + 507^2 .

It is not a de Polignac number, because 307225 - 2¹⁵ = 274457 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6120 + ... + 6169.

2³⁰⁷²²⁵ is an apocalyptic number.

It is an amenable number.

307225 is a deficient number, since it is larger than the sum of its proper divisors (73765).

307225 is a wasteful number, since it uses less digits than its factorization.

307225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12299 (or 12294 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 307225 is about 554.2788107081. The cubic root of 307225 is about 67.4764435405.

Adding to 307225 its reverse (522703), we get a palindrome (829928).

The spelling of 307225 in words is "three hundred seven thousand, two hundred twenty-five".