115390563 has 16 divisors (see below), whose sum is σ = 160932096. Its totient is φ = 73404320.

The previous prime is 115390469. The next prime is 115390571. The reversal of 115390563 is 365093511.

It is a Cunningham number, because it is equal to 10742²-1.

It is a cyclic number.

It is not a de Polignac number, because 115390563 - 2²⁰ = 114341987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115394563) 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 in 15 ways as a sum of consecutive naturals, for example, 30433 + ... + 34013.

It is an arithmetic number, because the mean of its divisors is an integer number (10058256).

Almost surely, 2^115390563 is an apocalyptic number.

115390563 is a deficient number, since it is larger than the sum of its proper divisors (45541533).

115390563 is a wasteful number, since it uses less digits than its factorization.

115390563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074.

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 115390563 is about 10741.9999534537. Note that the first 4 decimals coincide. The cubic root of 115390563 is about 486.8443087552.

The spelling of 115390563 in words is "one hundred fifteen million, three hundred ninety thousand, five hundred sixty-three".