16182225 has 72 divisors (see below), whose sum is σ = 31337280. Its totient is φ = 7962240.

The previous prime is 16182211. The next prime is 16182239. The reversal of 16182225 is 52228161.

It is a happy number.

16182225 is a `hidden beast` number, since 1 + 618 + 22 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (16182211) and next prime (16182239).

It is not a de Polignac number, because 16182225 - 2⁵ = 16182193 is a prime.

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, 274246 + ... + 274304.

It is an arithmetic number, because the mean of its divisors is an integer number (435240).

Almost surely, 2^16182225 is an apocalyptic number.

16182225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16182225 is a deficient number, since it is larger than the sum of its proper divisors (15155055).

16182225 is a wasteful number, since it uses less digits than its factorization.

16182225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 143 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 16182225 is about 4022.7136363405. The cubic root of 16182225 is about 252.9372224167.

The spelling of 16182225 in words is "sixteen million, one hundred eighty-two thousand, two hundred twenty-five".