18075097 has 4 divisors (see below), whose sum is σ = 19138356. Its totient is φ = 17011840.

The previous prime is 18075089. The next prime is 18075103. The reversal of 18075097 is 79057081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79057081 = 19 ⋅4160899.

It can be written as a sum of positive squares in 2 ways, for example, as 14295961 + 3779136 = 3781^2 + 1944^2 .

It is a cyclic number.

It is not a de Polignac number, because 18075097 - 2³ = 18075089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18075017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531604 + ... + 531637.

It is an arithmetic number, because the mean of its divisors is an integer number (4784589).

Almost surely, 2^18075097 is an apocalyptic number.

18075097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

18075097 is a deficient number, since it is larger than the sum of its proper divisors (1063259).

18075097 is a wasteful number, since it uses less digits than its factorization.

18075097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063258.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 18075097 is about 4251.4817416990. The cubic root of 18075097 is about 262.4380963628.

The spelling of 18075097 in words is "eighteen million, seventy-five thousand, ninety-seven".