197867225 has 12 divisors (see below), whose sum is σ = 249379500. Its totient is φ = 155697600.

The previous prime is 197867177. The next prime is 197867237. The reversal of 197867225 is 522768791.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 24760576 + 173106649 = 4976^2 + 13157^2 .

It is not a de Polignac number, because 197867225 - 2⁶ = 197867161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197867225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63350 + ... + 66399.

It is an arithmetic number, because the mean of its divisors is an integer number (20781625).

Almost surely, 2^197867225 is an apocalyptic number.

It is an amenable number.

197867225 is a deficient number, since it is larger than the sum of its proper divisors (51512275).

197867225 is a wasteful number, since it uses less digits than its factorization.

197867225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129820 (or 129815 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 197867225 is about 14066.5285340769. The cubic root of 197867225 is about 582.7173570392.

The spelling of 197867225 in words is "one hundred ninety-seven million, eight hundred sixty-seven thousand, two hundred twenty-five".