115878481 has 2 divisors, whose sum is σ = 115878482. Its totient is φ = 115878480.

The previous prime is 115878437. The next prime is 115878509. The reversal of 115878481 is 184878511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112784400 + 3094081 = 10620^2 + 1759^2 .

It is a cyclic number.

It is not a de Polignac number, because 115878481 - 2¹³ = 115870289 is a prime.

It is a super-2 number, since 2×115878481² = 26855644717734722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115878401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57939240 + 57939241.

It is an arithmetic number, because the mean of its divisors is an integer number (57939241).

Almost surely, 2^115878481 is an apocalyptic number.

It is an amenable number.

115878481 is a deficient number, since it is larger than the sum of its proper divisors (1).

115878481 is an equidigital number, since it uses as much as digits as its factorization.

115878481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71680, while the sum is 43.

The square root of 115878481 is about 10764.6867580994. The cubic root of 115878481 is about 487.5295354448.

The spelling of 115878481 in words is "one hundred fifteen million, eight hundred seventy-eight thousand, four hundred eighty-one".