18048497 has 4 divisors (see below), whose sum is σ = 18344436. Its totient is φ = 17752560.

The previous prime is 18048467. The next prime is 18048521. The reversal of 18048497 is 79484081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79484081 = 43 ⋅1848467.

It can be written as a sum of positive squares in 2 ways, for example, as 2611456 + 15437041 = 1616^2 + 3929^2 .

It is a cyclic number.

It is not a de Polignac number, because 18048497 - 2¹² = 18044401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18048427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147878 + ... + 147999.

It is an arithmetic number, because the mean of its divisors is an integer number (4586109).

Almost surely, 2^18048497 is an apocalyptic number.

It is an amenable number.

18048497 is a deficient number, since it is larger than the sum of its proper divisors (295939).

18048497 is an equidigital number, since it uses as much as digits as its factorization.

18048497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295938.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 18048497 is about 4248.3522688214. The cubic root of 18048497 is about 262.3092951988.

It can be divided in two parts, 1804 and 8497, that added together give a palindrome (10301).

The spelling of 18048497 in words is "eighteen million, forty-eight thousand, four hundred ninety-seven".