18606043 has 2 divisors, whose sum is σ = 18606044. Its totient is φ = 18606042.

The previous prime is 18606017. The next prime is 18606053. The reversal of 18606043 is 34060681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18606043 - 2¹³ = 18597851 is a prime.

It is a super-2 number, since 2×18606043² = 692369672235698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18606013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9303021 + 9303022.

It is an arithmetic number, because the mean of its divisors is an integer number (9303022).

Almost surely, 2^18606043 is an apocalyptic number.

18606043 is a deficient number, since it is larger than the sum of its proper divisors (1).

18606043 is an equidigital number, since it uses as much as digits as its factorization.

18606043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 18606043 is about 4313.4722672112. The cubic root of 18606043 is about 264.9829964170.

The spelling of 18606043 in words is "eighteen million, six hundred six thousand, forty-three".