5181893 has 2 divisors, whose sum is σ = 5181894. Its totient is φ = 5181892.

The previous prime is 5181881. The next prime is 5181899. The reversal of 5181893 is 3981815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3378244 + 1803649 = 1838^2 + 1343^2 .

It is a cyclic number.

It is not a de Polignac number, because 5181893 - 2⁶ = 5181829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5181899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2590946 + 2590947.

It is an arithmetic number, because the mean of its divisors is an integer number (2590947).

Almost surely, 2^5181893 is an apocalyptic number.

It is an amenable number.

5181893 is a deficient number, since it is larger than the sum of its proper divisors (1).

5181893 is an equidigital number, since it uses as much as digits as its factorization.

5181893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 35.

The square root of 5181893 is about 2276.3771655857. The cubic root of 5181893 is about 173.0464975755.

The spelling of 5181893 in words is "five million, one hundred eighty-one thousand, eight hundred ninety-three".