2082815771 has 2 divisors, whose sum is σ = 2082815772. Its totient is φ = 2082815770.

The previous prime is 2082815717. The next prime is 2082815831. The reversal of 2082815771 is 1775182802.

Together with previous prime (2082815717) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2082815771 is a prime.

It is not a weakly prime, because it can be changed into another prime (2082815971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1041407885 + 1041407886.

It is an arithmetic number, because the mean of its divisors is an integer number (1041407886).

Almost surely, 2^2082815771 is an apocalyptic number.

2082815771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2082815771 is an equidigital number, since it uses as much as digits as its factorization.

2082815771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62720, while the sum is 41.

The square root of 2082815771 is about 45637.8764952972. The cubic root of 2082815771 is about 1277.0766151237.

The spelling of 2082815771 in words is "two billion, eighty-two million, eight hundred fifteen thousand, seven hundred seventy-one".