115523399 has 2 divisors, whose sum is σ = 115523400. Its totient is φ = 115523398.

The previous prime is 115523389. The next prime is 115523407. The reversal of 115523399 is 993325511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115523399 - 2⁴ = 115523383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115523339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57761699 + 57761700.

It is an arithmetic number, because the mean of its divisors is an integer number (57761700).

Almost surely, 2^115523399 is an apocalyptic number.

115523399 is a deficient number, since it is larger than the sum of its proper divisors (1).

115523399 is an equidigital number, since it uses as much as digits as its factorization.

115523399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36450, while the sum is 38.

The square root of 115523399 is about 10748.1811949743. The cubic root of 115523399 is about 487.0310532309.

The spelling of 115523399 in words is "one hundred fifteen million, five hundred twenty-three thousand, three hundred ninety-nine".