4805191 has 2 divisors, whose sum is σ = 4805192. Its totient is φ = 4805190.

The previous prime is 4805189. The next prime is 4805231. The reversal of 4805191 is 1915084.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4805191 - 2¹ = 4805189 is a prime.

Together with 4805189, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4805111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2402595 + 2402596.

It is an arithmetic number, because the mean of its divisors is an integer number (2402596).

Almost surely, 2^4805191 is an apocalyptic number.

4805191 is a deficient number, since it is larger than the sum of its proper divisors (1).

4805191 is an equidigital number, since it uses as much as digits as its factorization.

4805191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 4805191 is about 2192.0745881470. The cubic root of 4805191 is about 168.7473203050.

It can be divided in two parts, 480 and 5191, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 4805191 in words is "four million, eight hundred five thousand, one hundred ninety-one".