5042861 has 2 divisors, whose sum is σ = 5042862. Its totient is φ = 5042860.

The previous prime is 5042857. The next prime is 5042867. The reversal of 5042861 is 1682405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3648100 + 1394761 = 1910^2 + 1181^2 .

It is a cyclic number.

It is not a de Polignac number, because 5042861 - 2² = 5042857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5042861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5042867) 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, 2521430 + 2521431.

It is an arithmetic number, because the mean of its divisors is an integer number (2521431).

Almost surely, 2^5042861 is an apocalyptic number.

It is an amenable number.

5042861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5042861 is an equidigital number, since it uses as much as digits as its factorization.

5042861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 5042861 is about 2245.6315370069. The cubic root of 5042861 is about 171.4848136558.

The spelling of 5042861 in words is "five million, forty-two thousand, eight hundred sixty-one".