2911291 has 2 divisors, whose sum is σ = 2911292. Its totient is φ = 2911290.

The previous prime is 2911247. The next prime is 2911297. The reversal of 2911291 is 1921192.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2911291 - 2⁷ = 2911163 is a prime.

It is not a weakly prime, because it can be changed into another prime (2911297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1455645 + 1455646.

It is an arithmetic number, because the mean of its divisors is an integer number (1455646).

2^2911291 is an apocalyptic number.

2911291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2911291 is an equidigital number, since it uses as much as digits as its factorization.

2911291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 25.

The square root of 2911291 is about 1706.2505677655. The cubic root of 2911291 is about 142.7891492146.

Subtracting from 2911291 its reverse (1921192), we obtain a palindrome (990099).

The spelling of 2911291 in words is "two million, nine hundred eleven thousand, two hundred ninety-one".