2665291 has 2 divisors, whose sum is σ = 2665292. Its totient is φ = 2665290.

The previous prime is 2665261. The next prime is 2665319. The reversal of 2665291 is 1925662.

2665291 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 is a cyclic number.

It is not a de Polignac number, because 2665291 - 2¹⁵ = 2632523 is a prime.

It is a super-2 number, since 2×2665291² = 14207552229362, which contains 22 as substring.

It is a Chen prime.

2665291 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2665231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332645 + 1332646.

It is an arithmetic number, because the mean of its divisors is an integer number (1332646).

2^2665291 is an apocalyptic number.

2665291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665291 is an equidigital number, since it uses as much as digits as its factorization.

2665291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 2665291 is about 1632.5718973448. The cubic root of 2665291 is about 138.6484049186.

The spelling of 2665291 in words is "two million, six hundred sixty-five thousand, two hundred ninety-one".