2261127511 has 2 divisors, whose sum is σ = 2261127512. Its totient is φ = 2261127510.

The previous prime is 2261127487. The next prime is 2261127563. The reversal of 2261127511 is 1157211622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2261127511 - 2¹³ = 2261119319 is a prime.

It is a super-2 number, since 2×2261127511² = 10225395242002110242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261127511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261127571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130563755 + 1130563756.

It is an arithmetic number, because the mean of its divisors is an integer number (1130563756).

Almost surely, 2^2261127511 is an apocalyptic number.

2261127511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261127511 is an equidigital number, since it uses as much as digits as its factorization.

2261127511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 28.

The square root of 2261127511 is about 47551.3145033868. The cubic root of 2261127511 is about 1312.5273182644.

The spelling of 2261127511 in words is "two billion, two hundred sixty-one million, one hundred twenty-seven thousand, five hundred eleven".