5181693 has 16 divisors (see below), whose sum is σ = 7865856. Its totient is φ = 3003440.

The previous prime is 5181679. The next prime is 5181697. The reversal of 5181693 is 3961815.

It is not a de Polignac number, because 5181693 - 2⁴ = 5181677 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181697) 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, 2655 + ... + 4172.

It is an arithmetic number, because the mean of its divisors is an integer number (491616).

Almost surely, 2^5181693 is an apocalyptic number.

It is an amenable number.

5181693 is a deficient number, since it is larger than the sum of its proper divisors (2684163).

5181693 is a wasteful number, since it uses less digits than its factorization.

5181693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6864.

The product of its digits is 6480, while the sum is 33.

The square root of 5181693 is about 2276.3332357104. Note that the first 3 decimals coincide. The cubic root of 5181693 is about 173.0442712498.

It can be divided in two parts, 518 and 1693, that added together give a triangular number (2211 = T₆₆).

The spelling of 5181693 in words is "five million, one hundred eighty-one thousand, six hundred ninety-three".