18124497 has 6 divisors (see below), whose sum is σ = 26179842. Its totient is φ = 12082992.

The previous prime is 18124493. The next prime is 18124511. The reversal of 18124497 is 79442181.

It can be written as a sum of positive squares in only one way, i.e., 15023376 + 3101121 = 3876^2 + 1761^2 .

It is not a de Polignac number, because 18124497 - 2² = 18124493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18124493) 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, 1006908 + ... + 1006925.

It is an arithmetic number, because the mean of its divisors is an integer number (4363307).

Almost surely, 2^18124497 is an apocalyptic number.

It is an amenable number.

18124497 is a deficient number, since it is larger than the sum of its proper divisors (8055345).

18124497 is a wasteful number, since it uses less digits than its factorization.

18124497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013839 (or 2013836 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 18124497 is about 4257.2875167177. The cubic root of 18124497 is about 262.6769636668.

The spelling of 18124497 in words is "eighteen million, one hundred twenty-four thousand, four hundred ninety-seven".