108243225 has 72 divisors (see below), whose sum is σ = 204998040. Its totient is φ = 54512640.

The previous prime is 108243197. The next prime is 108243251. The reversal of 108243225 is 522342801.

It can be written as a sum of positive squares in 12 ways, for example, as 51451929 + 56791296 = 7173^2 + 7536^2 .

It is not a de Polignac number, because 108243225 - 2¹⁷ = 108112153 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 345669 + ... + 345981.

It is an arithmetic number, because the mean of its divisors is an integer number (2847195).

Almost surely, 2^108243225 is an apocalyptic number.

108243225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108243225 is a deficient number, since it is larger than the sum of its proper divisors (96754815).

108243225 is a wasteful number, since it uses less digits than its factorization.

108243225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 108243225 is about 10404.0004325259. Note that the first 3 decimals coincide. The cubic root of 108243225 is about 476.5775435008.

The spelling of 108243225 in words is "one hundred eight million, two hundred forty-three thousand, two hundred twenty-five".