18056743 has 2 divisors, whose sum is σ = 18056744. Its totient is φ = 18056742.

The previous prime is 18056723. The next prime is 18056761. The reversal of 18056743 is 34765081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18056743 - 2²¹ = 15959591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18056699 and 18056708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18056713) 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 as a sum of consecutive naturals, namely, 9028371 + 9028372.

It is an arithmetic number, because the mean of its divisors is an integer number (9028372).

Almost surely, 2^18056743 is an apocalyptic number.

18056743 is a deficient number, since it is larger than the sum of its proper divisors (1).

18056743 is an equidigital number, since it uses as much as digits as its factorization.

18056743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 18056743 is about 4249.3226519058. The cubic root of 18056743 is about 262.3492370865.

The spelling of 18056743 in words is "eighteen million, fifty-six thousand, seven hundred forty-three".