18849225 has 12 divisors (see below), whose sum is σ = 31164176. Its totient is φ = 10052880.

The previous prime is 18849211. The next prime is 18849239. The reversal of 18849225 is 52294881.

It is an interprime number because it is at equal distance from previous prime (18849211) and next prime (18849239).

It is not a de Polignac number, because 18849225 - 2⁶ = 18849161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125587 + ... + 125736.

Almost surely, 2^18849225 is an apocalyptic number.

18849225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18849225 is a deficient number, since it is larger than the sum of its proper divisors (12314951).

18849225 is a wasteful number, since it uses less digits than its factorization.

18849225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251336 (or 251331 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 18849225 is about 4341.5694166971. The cubic root of 18849225 is about 266.1324504789.

The spelling of 18849225 in words is "eighteen million, eight hundred forty-nine thousand, two hundred twenty-five".