2165356087 has 2 divisors, whose sum is σ = 2165356088. Its totient is φ = 2165356086.

The previous prime is 2165356073. The next prime is 2165356097. The reversal of 2165356087 is 7806535612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2165356087 - 2¹⁵ = 2165323319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2165356007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082678043 + 1082678044.

It is an arithmetic number, because the mean of its divisors is an integer number (1082678044).

Almost surely, 2^2165356087 is an apocalyptic number.

2165356087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2165356087 is an equidigital number, since it uses as much as digits as its factorization.

2165356087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 2165356087 is about 46533.3867991574. The cubic root of 2165356087 is about 1293.7283894669.

The spelling of 2165356087 in words is "two billion, one hundred sixty-five million, three hundred fifty-six thousand, eighty-seven".