18124145 has 16 divisors (see below), whose sum is σ = 23868432. Its totient is φ = 13128960.

The previous prime is 18124123. The next prime is 18124153. The reversal of 18124145 is 54142181.

It can be written as a sum of positive squares in 8 ways, for example, as 10609 + 18113536 = 103^2 + 4256^2 .

It is not a de Polignac number, because 18124145 - 2¹² = 18120049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 815 + ... + 6075.

It is an arithmetic number, because the mean of its divisors is an integer number (1491777).

Almost surely, 2^18124145 is an apocalyptic number.

It is an amenable number.

18124145 is a deficient number, since it is larger than the sum of its proper divisors (5744287).

18124145 is a wasteful number, since it uses less digits than its factorization.

18124145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332.

The product of its digits is 1280, while the sum is 26.

The square root of 18124145 is about 4257.2461756398. The cubic root of 18124145 is about 262.6752631527.

The spelling of 18124145 in words is "eighteen million, one hundred twenty-four thousand, one hundred forty-five".