18225927 has 6 divisors (see below), whose sum is σ = 26326352. Its totient is φ = 12150612.

The previous prime is 18225919. The next prime is 18225947. The reversal of 18225927 is 72952281.

It is not a de Polignac number, because 18225927 - 2³ = 18225919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18225891 and 18225900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18225917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1012543 + ... + 1012560.

Almost surely, 2^18225927 is an apocalyptic number.

18225927 is a deficient number, since it is larger than the sum of its proper divisors (8100425).

18225927 is a wasteful number, since it uses less digits than its factorization.

18225927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025109 (or 2025106 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 18225927 is about 4269.1834113797. The cubic root of 18225927 is about 263.1660581980.

The spelling of 18225927 in words is "eighteen million, two hundred twenty-five thousand, nine hundred twenty-seven".