18540703 has 2 divisors, whose sum is σ = 18540704. Its totient is φ = 18540702.

The previous prime is 18540689. The next prime is 18540707. The reversal of 18540703 is 30704581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18540703 - 2⁹ = 18540191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18540707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9270351 + 9270352.

It is an arithmetic number, because the mean of its divisors is an integer number (9270352).

Almost surely, 2^18540703 is an apocalyptic number.

18540703 is a deficient number, since it is larger than the sum of its proper divisors (1).

18540703 is an equidigital number, since it uses as much as digits as its factorization.

18540703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 18540703 is about 4305.8916614332. The cubic root of 18540703 is about 264.6724468434.

The spelling of 18540703 in words is "eighteen million, five hundred forty thousand, seven hundred three".