2275813 has 2 divisors, whose sum is σ = 2275814. Its totient is φ = 2275812.

The previous prime is 2275771. The next prime is 2275831. The reversal of 2275813 is 3185722.

Together with next prime (2275831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1844164 + 431649 = 1358^2 + 657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2275813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2275843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1137906 + 1137907.

It is an arithmetic number, because the mean of its divisors is an integer number (1137907).

2^2275813 is an apocalyptic number.

It is an amenable number.

2275813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2275813 is an equidigital number, since it uses as much as digits as its factorization.

2275813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 2275813 is about 1508.5797957019. The cubic root of 2275813 is about 131.5362706986.

Subtracting 2275813 from its reverse (3185722), we obtain a palindrome (909909).

The spelling of 2275813 in words is "two million, two hundred seventy-five thousand, eight hundred thirteen".