115583191 has 2 divisors, whose sum is σ = 115583192. Its totient is φ = 115583190.

The previous prime is 115583189. The next prime is 115583231. The reversal of 115583191 is 191385511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115583191 - 2¹ = 115583189 is a prime.

Together with 115583189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115583291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57791595 + 57791596.

It is an arithmetic number, because the mean of its divisors is an integer number (57791596).

Almost surely, 2^115583191 is an apocalyptic number.

115583191 is a deficient number, since it is larger than the sum of its proper divisors (1).

115583191 is an equidigital number, since it uses as much as digits as its factorization.

115583191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 34.

The square root of 115583191 is about 10750.9623290197. The cubic root of 115583191 is about 487.1150637384.

The spelling of 115583191 in words is "one hundred fifteen million, five hundred eighty-three thousand, one hundred ninety-one".