18097275 has 24 divisors (see below), whose sum is σ = 34196224. Its totient is φ = 8272800.

The previous prime is 18097271. The next prime is 18097279. The reversal of 18097275 is 57279081.

It is an interprime number because it is at equal distance from previous prime (18097271) and next prime (18097279).

It is not a de Polignac number, because 18097275 - 2² = 18097271 is a prime.

It is a super-2 number, since 2×18097275² = 655022724851250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18097271) 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 23 ways as a sum of consecutive naturals, for example, 16711 + ... + 17760.

Almost surely, 2^18097275 is an apocalyptic number.

18097275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18097275 is a deficient number, since it is larger than the sum of its proper divisors (16098949).

18097275 is a wasteful number, since it uses less digits than its factorization.

18097275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34491 (or 34486 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 18097275 is about 4254.0892092198. The cubic root of 18097275 is about 262.5453889767.

The spelling of 18097275 in words is "eighteen million, ninety-seven thousand, two hundred seventy-five".