18145713 has 8 divisors (see below), whose sum is σ = 24709248. Its totient is φ = 11839664.

The previous prime is 18145711. The next prime is 18145759. The reversal of 18145713 is 31754181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18145713 - 2¹ = 18145711 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18145711) 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 7 ways as a sum of consecutive naturals, for example, 64206 + ... + 64487.

It is an arithmetic number, because the mean of its divisors is an integer number (3088656).

Almost surely, 2^18145713 is an apocalyptic number.

It is an amenable number.

18145713 is a deficient number, since it is larger than the sum of its proper divisors (6563535).

18145713 is a wasteful number, since it uses less digits than its factorization.

18145713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128743.

The product of its digits is 3360, while the sum is 30.

The square root of 18145713 is about 4259.7785153691. The cubic root of 18145713 is about 262.7794176616.

Adding to 18145713 its reverse (31754181), we get a palindrome (49899894).

The spelling of 18145713 in words is "eighteen million, one hundred forty-five thousand, seven hundred thirteen".