115954591 has 2 divisors, whose sum is σ = 115954592. Its totient is φ = 115954590.

The previous prime is 115954583. The next prime is 115954607. The reversal of 115954591 is 195459511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115954591 - 2³ = 115954583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115954691) 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, 57977295 + 57977296.

It is an arithmetic number, because the mean of its divisors is an integer number (57977296).

Almost surely, 2^115954591 is an apocalyptic number.

115954591 is a deficient number, since it is larger than the sum of its proper divisors (1).

115954591 is an equidigital number, since it uses as much as digits as its factorization.

115954591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 40.

The square root of 115954591 is about 10768.2213480222. The cubic root of 115954591 is about 487.6362499724.

The spelling of 115954591 in words is "one hundred fifteen million, nine hundred fifty-four thousand, five hundred ninety-one".