5918191 has 2 divisors, whose sum is σ = 5918192. Its totient is φ = 5918190.

The previous prime is 5918189. The next prime is 5918201. The reversal of 5918191 is 1918195.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5918191 - 2¹ = 5918189 is a prime.

Together with 5918189, 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 (5918111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2959095 + 2959096.

It is an arithmetic number, because the mean of its divisors is an integer number (2959096).

Almost surely, 2^5918191 is an apocalyptic number.

5918191 is a deficient number, since it is larger than the sum of its proper divisors (1).

5918191 is an equidigital number, since it uses as much as digits as its factorization.

5918191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 34.

The square root of 5918191 is about 2432.7332365058. The cubic root of 5918191 is about 180.8824058363.

The spelling of 5918191 in words is "five million, nine hundred eighteen thousand, one hundred ninety-one".