18452047 has 2 divisors, whose sum is σ = 18452048. Its totient is φ = 18452046.

The previous prime is 18452039. The next prime is 18452081. The reversal of 18452047 is 74025481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18452047 - 2³ = 18452039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18452947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9226023 + 9226024.

It is an arithmetic number, because the mean of its divisors is an integer number (9226024).

Almost surely, 2^18452047 is an apocalyptic number.

18452047 is a deficient number, since it is larger than the sum of its proper divisors (1).

18452047 is an equidigital number, since it uses as much as digits as its factorization.

18452047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 18452047 is about 4295.5845935099. The cubic root of 18452047 is about 264.2499116132.

The spelling of 18452047 in words is "eighteen million, four hundred fifty-two thousand, forty-seven".