4105861 has 2 divisors, whose sum is σ = 4105862. Its totient is φ = 4105860.

The previous prime is 4105847. The next prime is 4105879. The reversal of 4105861 is 1685014.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2464900 + 1640961 = 1570^2 + 1281^2 .

It is a cyclic number.

It is not a de Polignac number, because 4105861 - 2²¹ = 2008709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4105811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2052930 + 2052931.

It is an arithmetic number, because the mean of its divisors is an integer number (2052931).

Almost surely, 2^4105861 is an apocalyptic number.

It is an amenable number.

4105861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4105861 is an equidigital number, since it uses as much as digits as its factorization.

4105861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 4105861 is about 2026.2924270697. The cubic root of 4105861 is about 160.1282955366.

The spelling of 4105861 in words is "four million, one hundred five thousand, eight hundred sixty-one".