2787166141 has 2 divisors, whose sum is σ = 2787166142. Its totient is φ = 2787166140.

The previous prime is 2787166127. The next prime is 2787166147. The reversal of 2787166141 is 1416617872.

2787166141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2784672900 + 2493241 = 52770^2 + 1579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2787166141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2787166147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1393583070 + 1393583071.

It is an arithmetic number, because the mean of its divisors is an integer number (1393583071).

Almost surely, 2^2787166141 is an apocalyptic number.

It is an amenable number.

2787166141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2787166141 is an equidigital number, since it uses as much as digits as its factorization.

2787166141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 43.

The square root of 2787166141 is about 52793.6183738148. The cubic root of 2787166141 is about 1407.3030184306.

The spelling of 2787166141 in words is "two billion, seven hundred eighty-seven million, one hundred sixty-six thousand, one hundred forty-one".