2251841 has 2 divisors, whose sum is σ = 2251842. Its totient is φ = 2251840.

The previous prime is 2251829. The next prime is 2251849. The reversal of 2251841 is 1481522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1201216 + 1050625 = 1096^2 + 1025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2251841 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2251849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125920 + 1125921.

It is an arithmetic number, because the mean of its divisors is an integer number (1125921).

2^2251841 is an apocalyptic number.

It is an amenable number.

2251841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251841 is an equidigital number, since it uses as much as digits as its factorization.

2251841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640, while the sum is 23.

The square root of 2251841 is about 1500.6135411891. The cubic root of 2251841 is about 131.0727991148.

The spelling of 2251841 in words is "two million, two hundred fifty-one thousand, eight hundred forty-one".