2261851 has 2 divisors, whose sum is σ = 2261852. Its totient is φ = 2261850.

The previous prime is 2261839. The next prime is 2261863. The reversal of 2261851 is 1581622.

It is a balanced prime because it is at equal distance from previous prime (2261839) and next prime (2261863).

It is a cyclic number.

It is not a de Polignac number, because 2261851 - 2¹³ = 2253659 is a prime.

It is not a weakly prime, because it can be changed into another prime (2261801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130925 + 1130926.

It is an arithmetic number, because the mean of its divisors is an integer number (1130926).

2^2261851 is an apocalyptic number.

2261851 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261851 is an equidigital number, since it uses as much as digits as its factorization.

2261851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 25.

The square root of 2261851 is about 1503.9451452762. The cubic root of 2261851 is about 131.2667292357.

The spelling of 2261851 in words is "two million, two hundred sixty-one thousand, eight hundred fifty-one".