5781111 has 16 divisors (see below), whose sum is σ = 9273600. Its totient is φ = 3129408.

The previous prime is 5781107. The next prime is 5781131. The reversal of 5781111 is 1111875.

5781111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5781111 - 2² = 5781107 is a prime.

5781111 is a modest number, since divided by 1111 gives 578 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781101) 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 15 ways as a sum of consecutive naturals, for example, 6846 + ... + 7643.

It is an arithmetic number, because the mean of its divisors is an integer number (579600).

Almost surely, 2^5781111 is an apocalyptic number.

5781111 is a deficient number, since it is larger than the sum of its proper divisors (3492489).

5781111 is a wasteful number, since it uses less digits than its factorization.

5781111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14518.

The product of its digits is 280, while the sum is 24.

The square root of 5781111 is about 2404.3941024716. The cubic root of 5781111 is about 179.4749203923.

Adding to 5781111 its reverse (1111875), we get a palindrome (6892986).

The spelling of 5781111 in words is "five million, seven hundred eighty-one thousand, one hundred eleven".