115287247109 has 2 divisors, whose sum is σ = 115287247110. Its totient is φ = 115287247108.

The previous prime is 115287247013. The next prime is 115287247111. The reversal of 115287247109 is 901742782511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114580219009 + 707028100 = 338497^2 + 26590^2 .

It is a cyclic number.

It is not a de Polignac number, because 115287247109 - 2⁸ = 115287246853 is a prime.

It is a super-2 number, since 2×115287247109² (a number of 23 digits) contains 22 as substring.

Together with 115287247111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115287247139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57643623554 + 57643623555.

It is an arithmetic number, because the mean of its divisors is an integer number (57643623555).

Almost surely, 2^115287247109 is an apocalyptic number.

It is an amenable number.

115287247109 is a deficient number, since it is larger than the sum of its proper divisors (1).

115287247109 is an equidigital number, since it uses as much as digits as its factorization.

115287247109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 47.

The spelling of 115287247109 in words is "one hundred fifteen billion, two hundred eighty-seven million, two hundred forty-seven thousand, one hundred nine".