115448089 has 2 divisors, whose sum is σ = 115448090. Its totient is φ = 115448088.

The previous prime is 115448023. The next prime is 115448093. The reversal of 115448089 is 980844511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115347600 + 100489 = 10740^2 + 317^2 .

It is an emirp because it is prime and its reverse (980844511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115448089 - 2⁷ = 115447961 is a prime.

It is a super-2 number, since 2×115448089² = 26656522507503842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115448689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57724044 + 57724045.

It is an arithmetic number, because the mean of its divisors is an integer number (57724045).

Almost surely, 2^115448089 is an apocalyptic number.

It is an amenable number.

115448089 is a deficient number, since it is larger than the sum of its proper divisors (1).

115448089 is an equidigital number, since it uses as much as digits as its factorization.

115448089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 115448089 is about 10744.6772403828. The cubic root of 115448089 is about 486.9251979610.

The spelling of 115448089 in words is "one hundred fifteen million, four hundred forty-eight thousand, eighty-nine".