168182225 has 12 divisors (see below), whose sum is σ = 209157744. Its totient is φ = 134151120.

The previous prime is 168182221. The next prime is 168182227. The reversal of 168182225 is 522281861.

It is a happy number.

It is not a de Polignac number, because 168182225 - 2² = 168182221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168182221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1019 + ... + 18368.

It is an arithmetic number, because the mean of its divisors is an integer number (17429812).

Almost surely, 2^168182225 is an apocalyptic number.

It is an amenable number.

168182225 is a deficient number, since it is larger than the sum of its proper divisors (40975519).

168182225 is a wasteful number, since it uses less digits than its factorization.

168182225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19744 (or 19739 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 168182225 is about 12968.5089736639. The cubic root of 168182225 is about 551.9842651557.

The spelling of 168182225 in words is "one hundred sixty-eight million, one hundred eighty-two thousand, two hundred twenty-five".