5811147 has 6 divisors (see below), whose sum is σ = 8393892. Its totient is φ = 3874092.

The previous prime is 5811121. The next prime is 5811163. The reversal of 5811147 is 7411185.

It is not a de Polignac number, because 5811147 - 2⁶ = 5811083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5811147.

It is not an unprimeable number, because it can be changed into a prime (5811187) 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 in 5 ways as a sum of consecutive naturals, for example, 322833 + ... + 322850.

It is an arithmetic number, because the mean of its divisors is an integer number (1398982).

Almost surely, 2^5811147 is an apocalyptic number.

5811147 is a deficient number, since it is larger than the sum of its proper divisors (2582745).

5811147 is a wasteful number, since it uses less digits than its factorization.

5811147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645689 (or 645686 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 5811147 is about 2410.6320747887. The cubic root of 5811147 is about 179.7852067530.

It can be divided in two parts, 581 and 1147, that added together give a cube (1728 = 12³).

The spelling of 5811147 in words is "five million, eight hundred eleven thousand, one hundred forty-seven".