2261749271 has 2 divisors, whose sum is σ = 2261749272. Its totient is φ = 2261749270.

The previous prime is 2261749261. The next prime is 2261749279. The reversal of 2261749271 is 1729471622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2261749271 - 2¹⁸ = 2261487127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261749279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130874635 + 1130874636.

It is an arithmetic number, because the mean of its divisors is an integer number (1130874636).

Almost surely, 2^2261749271 is an apocalyptic number.

2261749271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261749271 is an equidigital number, since it uses as much as digits as its factorization.

2261749271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 41.

The square root of 2261749271 is about 47557.8518333198. The cubic root of 2261749271 is about 1312.6476125559.

The spelling of 2261749271 in words is "two billion, two hundred sixty-one million, seven hundred forty-nine thousand, two hundred seventy-one".