168200225 has 6 divisors (see below), whose sum is σ = 208568310. Its totient is φ = 134560160.

The previous prime is 168200177. The next prime is 168200233. The reversal of 168200225 is 522002861.

It can be written as a sum of positive squares in 3 ways, for example, as 678976 + 167521249 = 824^2 + 12943^2 .

It is not a de Polignac number, because 168200225 - 2¹⁶ = 168134689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168200194 and 168200203.

It is a congruent number.

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, 3363980 + ... + 3364029.

It is an arithmetic number, because the mean of its divisors is an integer number (34761385).

Almost surely, 2^168200225 is an apocalyptic number.

It is an amenable number.

168200225 is a deficient number, since it is larger than the sum of its proper divisors (40368085).

168200225 is an equidigital number, since it uses as much as digits as its factorization.

168200225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6728019 (or 6728014 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 168200225 is about 12969.2029438975. The cubic root of 168200225 is about 552.0039568172.

The spelling of 168200225 in words is "one hundred sixty-eight million, two hundred thousand, two hundred twenty-five".