2186315941 has 2 divisors, whose sum is σ = 2186315942. Its totient is φ = 2186315940.

The previous prime is 2186315881. The next prime is 2186315983. The reversal of 2186315941 is 1495136812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1962933025 + 223382916 = 44305^2 + 14946^2 .

It is a cyclic number.

It is not a de Polignac number, because 2186315941 - 2⁹ = 2186315429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2186315894 and 2186315903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2186310941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1093157970 + 1093157971.

It is an arithmetic number, because the mean of its divisors is an integer number (1093157971).

Almost surely, 2^2186315941 is an apocalyptic number.

It is an amenable number.

2186315941 is a deficient number, since it is larger than the sum of its proper divisors (1).

2186315941 is an equidigital number, since it uses as much as digits as its factorization.

2186315941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 2186315941 is about 46758.0574981468. The cubic root of 2186315941 is about 1297.8892653097.

The spelling of 2186315941 in words is "two billion, one hundred eighty-six million, three hundred fifteen thousand, nine hundred forty-one".