2261837 has 2 divisors, whose sum is σ = 2261838. Its totient is φ = 2261836.

The previous prime is 2261827. The next prime is 2261839. The reversal of 2261837 is 7381622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2253001 + 8836 = 1501^2 + 94^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2261837 is a prime.

It is a super-2 number, since 2×2261837² = 10231813229138, which contains 22 as substring.

Together with 2261839, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2⁷ + 2²¹ + 6⁶ + 1 + 8 + 3⁵ + 7⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130918 + 1130919.

It is an arithmetic number, because the mean of its divisors is an integer number (1130919).

2^2261837 is an apocalyptic number.

It is an amenable number.

2261837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261837 is an equidigital number, since it uses as much as digits as its factorization.

2261837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 2261837 is about 1503.9404908440. The cubic root of 2261837 is about 131.2664584047.

The spelling of 2261837 in words is "two million, two hundred sixty-one thousand, eight hundred thirty-seven".