115000261 has 2 divisors, whose sum is σ = 115000262. Its totient is φ = 115000260.

The previous prime is 115000247. The next prime is 115000267. The reversal of 115000261 is 162000511.

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., 102616900 + 12383361 = 10130^2 + 3519^2 .

It is an emirp because it is prime and its reverse (162000511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115000261 - 2⁵ = 115000229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115000267) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57500130 + 57500131.

It is an arithmetic number, because the mean of its divisors is an integer number (57500131).

Almost surely, 2^115000261 is an apocalyptic number.

It is an amenable number.

115000261 is a deficient number, since it is larger than the sum of its proper divisors (1).

115000261 is an equidigital number, since it uses as much as digits as its factorization.

115000261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 115000261 is about 10723.8174639445. The cubic root of 115000261 is about 486.2947810014.

Adding to 115000261 its reverse (162000511), we get a palindrome (277000772).

The spelling of 115000261 in words is "one hundred fifteen million, two hundred sixty-one", and thus it is an aban number.