18454043 has 2 divisors, whose sum is σ = 18454044. Its totient is φ = 18454042.

The previous prime is 18454031. The next prime is 18454049. The reversal of 18454043 is 34045481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18454043 - 2⁶ = 18453979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18453997 and 18454015.

It is not a weakly prime, because it can be changed into another prime (18454049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9227021 + 9227022.

It is an arithmetic number, because the mean of its divisors is an integer number (9227022).

Almost surely, 2^18454043 is an apocalyptic number.

18454043 is a deficient number, since it is larger than the sum of its proper divisors (1).

18454043 is an equidigital number, since it uses as much as digits as its factorization.

18454043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 18454043 is about 4295.8169188177. The cubic root of 18454043 is about 264.2594394415.

The spelling of 18454043 in words is "eighteen million, four hundred fifty-four thousand, forty-three".