4581191 has 2 divisors, whose sum is σ = 4581192. Its totient is φ = 4581190.

The previous prime is 4581151. The next prime is 4581193. The reversal of 4581191 is 1911854.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4581191 - 2²² = 386887 is a prime.

Together with 4581193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4581193) 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 as a sum of consecutive naturals, namely, 2290595 + 2290596.

It is an arithmetic number, because the mean of its divisors is an integer number (2290596).

Almost surely, 2^4581191 is an apocalyptic number.

4581191 is a deficient number, since it is larger than the sum of its proper divisors (1).

4581191 is an equidigital number, since it uses as much as digits as its factorization.

4581191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 29.

The square root of 4581191 is about 2140.3716966920. The cubic root of 4581191 is about 166.0833640410.

The spelling of 4581191 in words is "four million, five hundred eighty-one thousand, one hundred ninety-one".