115968481 has 2 divisors, whose sum is σ = 115968482. Its totient is φ = 115968480.

The previous prime is 115968473. The next prime is 115968493. The reversal of 115968481 is 184869511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108993600 + 6974881 = 10440^2 + 2641^2 .

It is an emirp because it is prime and its reverse (184869511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115968481 - 2³ = 115968473 is a prime.

It is a super-2 number, since 2×115968481² = 26897377170894722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115368481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57984240 + 57984241.

It is an arithmetic number, because the mean of its divisors is an integer number (57984241).

Almost surely, 2^115968481 is an apocalyptic number.

It is an amenable number.

115968481 is a deficient number, since it is larger than the sum of its proper divisors (1).

115968481 is an equidigital number, since it uses as much as digits as its factorization.

115968481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 43.

The square root of 115968481 is about 10768.8662820187. The cubic root of 115968481 is about 487.6557202295.

The spelling of 115968481 in words is "one hundred fifteen million, nine hundred sixty-eight thousand, four hundred eighty-one".