2186141 has 2 divisors, whose sum is σ = 2186142. Its totient is φ = 2186140.

The previous prime is 2186113. The next prime is 2186189. The reversal of 2186141 is 1416812.

2186141 = 1045² + 1046².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1094116 + 1092025 = 1046^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 2186141 - 2¹⁴ = 2169757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2186101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1093070 + 1093071.

It is an arithmetic number, because the mean of its divisors is an integer number (1093071).

2^2186141 is an apocalyptic number.

2186141 is the 1046-th centered square number.

It is an amenable number.

2186141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2186141 is an equidigital number, since it uses as much as digits as its factorization.

2186141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 23.

The square root of 2186141 is about 1478.5604485445. The cubic root of 2186141 is about 129.7854646937.

The spelling of 2186141 in words is "two million, one hundred eighty-six thousand, one hundred forty-one".