6115340261 has 2 divisors, whose sum is σ = 6115340262. Its totient is φ = 6115340260.

The previous prime is 6115340243. The next prime is 6115340267. The reversal of 6115340261 is 1620435116.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3954020161 + 2161320100 = 62881^2 + 46490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6115340261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6115340267) 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, 3057670130 + 3057670131.

It is an arithmetic number, because the mean of its divisors is an integer number (3057670131).

Almost surely, 2^6115340261 is an apocalyptic number.

It is an amenable number.

6115340261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6115340261 is an equidigital number, since it uses as much as digits as its factorization.

6115340261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 6115340261 is about 78200.6410523597. The cubic root of 6115340261 is about 1828.6905002688.

Adding to 6115340261 its reverse (1620435116), we get a palindrome (7735775377).

The spelling of 6115340261 in words is "six billion, one hundred fifteen million, three hundred forty thousand, two hundred sixty-one".