18942083 has 2 divisors, whose sum is σ = 18942084. Its totient is φ = 18942082.

The previous prime is 18942073. The next prime is 18942089. The reversal of 18942083 is 38024981.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18942083 - 2¹⁰ = 18941059 is a prime.

It is a super-3 number, since 3×18942083³ (a number of 23 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (18942089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9471041 + 9471042.

It is an arithmetic number, because the mean of its divisors is an integer number (9471042).

Almost surely, 2^18942083 is an apocalyptic number.

18942083 is a deficient number, since it is larger than the sum of its proper divisors (1).

18942083 is an equidigital number, since it uses as much as digits as its factorization.

18942083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 18942083 is about 4352.2503374691. The cubic root of 18942083 is about 266.5687558952.

The spelling of 18942083 in words is "eighteen million, nine hundred forty-two thousand, eighty-three".