5673181 has 2 divisors, whose sum is σ = 5673182. Its totient is φ = 5673180.

The previous prime is 5673179. The next prime is 5673233. The reversal of 5673181 is 1813765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5447556 + 225625 = 2334^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 5673181 - 2¹ = 5673179 is a prime.

It is a super-2 number, since 2×5673181² = 64369965317522, which contains 22 as substring.

Together with 5673179, it forms a pair of twin primes.

5673181 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5673281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2836590 + 2836591.

It is an arithmetic number, because the mean of its divisors is an integer number (2836591).

Almost surely, 2^5673181 is an apocalyptic number.

It is an amenable number.

5673181 is a deficient number, since it is larger than the sum of its proper divisors (1).

5673181 is an equidigital number, since it uses as much as digits as its factorization.

5673181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 5673181 is about 2381.8440335169. The cubic root of 5673181 is about 178.3509991137.

It can be divided in two parts, 56 and 73181, that added together give a palindrome (73237).

The spelling of 5673181 in words is "five million, six hundred seventy-three thousand, one hundred eighty-one".