168799225 has 24 divisors (see below), whose sum is σ = 239816000. Its totient is φ = 115456320.

The previous prime is 168799219. The next prime is 168799259. The reversal of 168799225 is 522997861.

It is not a de Polignac number, because 168799225 - 2¹⁷ = 168668153 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 86359 + ... + 88291.

Almost surely, 2^168799225 is an apocalyptic number.

It is an amenable number.

168799225 is a deficient number, since it is larger than the sum of its proper divisors (71016775).

168799225 is a wasteful number, since it uses less digits than its factorization.

168799225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449 (or 2444 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

The square root of 168799225 is about 12992.2755897495. The cubic root of 168799225 is about 552.6584518539.

The spelling of 168799225 in words is "one hundred sixty-eight million, seven hundred ninety-nine thousand, two hundred twenty-five".