18714225 has 24 divisors (see below), whose sum is σ = 31605120. Its totient is φ = 9766720.

The previous prime is 18714217. The next prime is 18714233. The reversal of 18714225 is 52241781.

It is an interprime number because it is at equal distance from previous prime (18714217) and next prime (18714233).

It is not a de Polignac number, because 18714225 - 2³ = 18714217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18714192 and 18714201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 871 + ... + 6179.

It is an arithmetic number, because the mean of its divisors is an integer number (1316880).

Almost surely, 2^18714225 is an apocalyptic number.

18714225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18714225 is a deficient number, since it is larger than the sum of its proper divisors (12890895).

18714225 is a wasteful number, since it uses less digits than its factorization.

18714225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369 (or 5364 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 18714225 is about 4325.9941054051. The cubic root of 18714225 is about 265.4955720088.

The spelling of 18714225 in words is "eighteen million, seven hundred fourteen thousand, two hundred twenty-five".