115304089261 has 2 divisors, whose sum is σ = 115304089262. Its totient is φ = 115304089260.

The previous prime is 115304089193. The next prime is 115304089273. The reversal of 115304089261 is 162980403511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113980512100 + 1323577161 = 337610^2 + 36381^2 .

It is a cyclic number.

It is not a de Polignac number, because 115304089261 - 2⁷ = 115304089133 is a prime.

It is a super-2 number, since 2×115304089261² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115304089361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57652044630 + 57652044631.

It is an arithmetic number, because the mean of its divisors is an integer number (57652044631).

Almost surely, 2^115304089261 is an apocalyptic number.

It is an amenable number.

115304089261 is a deficient number, since it is larger than the sum of its proper divisors (1).

115304089261 is an equidigital number, since it uses as much as digits as its factorization.

115304089261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 115304089261 in words is "one hundred fifteen billion, three hundred four million, eighty-nine thousand, two hundred sixty-one".