18036097 has 4 divisors (see below), whose sum is σ = 18052180. Its totient is φ = 18020016.

The previous prime is 18036091. The next prime is 18036101. The reversal of 18036097 is 79063081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2163841 + 15872256 = 1471^2 + 3984^2 .

It is a cyclic number.

It is not a de Polignac number, because 18036097 - 2²³ = 9647489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18036091) 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, 6222 + ... + 8647.

It is an arithmetic number, because the mean of its divisors is an integer number (4513045).

Almost surely, 2^18036097 is an apocalyptic number.

It is an amenable number.

18036097 is a deficient number, since it is larger than the sum of its proper divisors (16083).

18036097 is a wasteful number, since it uses less digits than its factorization.

18036097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16082.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 18036097 is about 4246.8926287346. The cubic root of 18036097 is about 262.2492093010.

The spelling of 18036097 in words is "eighteen million, thirty-six thousand, ninety-seven".