2261071 has 2 divisors, whose sum is σ = 2261072. Its totient is φ = 2261070.

The previous prime is 2261053. The next prime is 2261093. The reversal of 2261071 is 1701622.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2261071 is a prime.

It is a super-2 number, since 2×2261071² = 10224884134082, which contains 22 as substring.

It is a Chen prime.

2261071 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130535 + 1130536.

It is an arithmetic number, because the mean of its divisors is an integer number (1130536).

2^2261071 is an apocalyptic number.

2261071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261071 is an equidigital number, since it uses as much as digits as its factorization.

2261071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2261071 is about 1503.6858049473. The cubic root of 2261071 is about 131.2516383771.

Adding to 2261071 its reverse (1701622), we get a palindrome (3962693).

The spelling of 2261071 in words is "two million, two hundred sixty-one thousand, seventy-one".