2812261 has 2 divisors, whose sum is σ = 2812262. Its totient is φ = 2812260.

The previous prime is 2812241. The next prime is 2812267. The reversal of 2812261 is 1622182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2660161 + 152100 = 1631^2 + 390^2 .

It is a cyclic number.

It is not a de Polignac number, because 2812261 - 2¹³ = 2804069 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2812267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1406130 + 1406131.

It is an arithmetic number, because the mean of its divisors is an integer number (1406131).

2^2812261 is an apocalyptic number.

It is an amenable number.

2812261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2812261 is an equidigital number, since it uses as much as digits as its factorization.

2812261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 22.

The square root of 2812261 is about 1676.9797255781. The cubic root of 2812261 is about 141.1514058614.

The spelling of 2812261 in words is "two million, eight hundred twelve thousand, two hundred sixty-one".