4118861 has 2 divisors, whose sum is σ = 4118862. Its totient is φ = 4118860.

The previous prime is 4118833. The next prime is 4118893. The reversal of 4118861 is 1688114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2175625 + 1943236 = 1475^2 + 1394^2 .

It is a cyclic number.

It is not a de Polignac number, because 4118861 - 2⁶ = 4118797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4118161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2059430 + 2059431.

It is an arithmetic number, because the mean of its divisors is an integer number (2059431).

Almost surely, 2^4118861 is an apocalyptic number.

It is an amenable number.

4118861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4118861 is an equidigital number, since it uses as much as digits as its factorization.

4118861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 29.

The square root of 4118861 is about 2029.4977211123. The cubic root of 4118861 is about 160.2971171879.

The spelling of 4118861 in words is "four million, one hundred eighteen thousand, eight hundred sixty-one".