4140611261 has 2 divisors, whose sum is σ = 4140611262. Its totient is φ = 4140611260.

The previous prime is 4140611203. The next prime is 4140611269. The reversal of 4140611261 is 1621160414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3136672036 + 1003939225 = 56006^2 + 31685^2 .

It is a cyclic number.

It is not a de Polignac number, because 4140611261 - 2¹⁴ = 4140594877 is a prime.

It is a super-2 number, since 2×4140611261² = 34289323229440020242, 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 4140611261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4140611269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2070305630 + 2070305631.

It is an arithmetic number, because the mean of its divisors is an integer number (2070305631).

Almost surely, 2^4140611261 is an apocalyptic number.

It is an amenable number.

4140611261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4140611261 is an equidigital number, since it uses as much as digits as its factorization.

4140611261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4140611261 is about 64347.5816251085. The cubic root of 4140611261 is about 1605.7877960828.

Adding to 4140611261 its reverse (1621160414), we get a palindrome (5761771675).

The spelling of 4140611261 in words is "four billion, one hundred forty million, six hundred eleven thousand, two hundred sixty-one".