2290081 has 2 divisors, whose sum is σ = 2290082. Its totient is φ = 2290080.

The previous prime is 2290069. The next prime is 2290091. The reversal of 2290081 is 1800922.

2290081 is nontrivially palindromic in base 6.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2117025 + 173056 = 1455^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 2290081 - 2⁵ = 2290049 is a prime.

It is a super-2 number, since 2×2290081² = 10488941973122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2290021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145040 + 1145041.

It is an arithmetic number, because the mean of its divisors is an integer number (1145041).

2^2290081 is an apocalyptic number.

It is an amenable number.

2290081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2290081 is an equidigital number, since it uses as much as digits as its factorization.

2290081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2290081 is about 1513.3013579588. The cubic root of 2290081 is about 131.8105830809.

The spelling of 2290081 in words is "two million, two hundred ninety thousand, eighty-one".