2281291 has 2 divisors, whose sum is σ = 2281292. Its totient is φ = 2281290.

The previous prime is 2281277. The next prime is 2281297. The reversal of 2281291 is 1921822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2281291 - 2¹¹ = 2279243 is a prime.

It is equal to p₁₆₈₂₅₃ and since 2281291 and 168253 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2281297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140645 + 1140646.

It is an arithmetic number, because the mean of its divisors is an integer number (1140646).

2^2281291 is an apocalyptic number.

2281291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281291 is an equidigital number, since it uses as much as digits as its factorization.

2281291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 25.

The square root of 2281291 is about 1510.3943193749. The cubic root of 2281291 is about 131.6417243430.

The spelling of 2281291 in words is "two million, two hundred eighty-one thousand, two hundred ninety-one".