5712181 has 4 divisors (see below), whose sum is σ = 5820012. Its totient is φ = 5604352.

The previous prime is 5712173. The next prime is 5712193. The reversal of 5712181 is 1812175.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4137156 + 1575025 = 2034^2 + 1255^2 .

It is a cyclic number.

It is not a de Polignac number, because 5712181 - 2³ = 5712173 is a prime.

It is a super-2 number, since 2×5712181² = 65258023553522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5712121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53836 + ... + 53941.

It is an arithmetic number, because the mean of its divisors is an integer number (1455003).

Almost surely, 2^5712181 is an apocalyptic number.

It is an amenable number.

5712181 is a deficient number, since it is larger than the sum of its proper divisors (107831).

5712181 is a wasteful number, since it uses less digits than its factorization.

5712181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107830.

The product of its digits is 560, while the sum is 25.

The square root of 5712181 is about 2390.0169455466. The cubic root of 5712181 is about 178.7587545226.

It can be divided in two parts, 57121 and 81, that multiplied together give a square (4626801 = 2151²).

The spelling of 5712181 in words is "five million, seven hundred twelve thousand, one hundred eighty-one".