5161181 has 2 divisors, whose sum is σ = 5161182. Its totient is φ = 5161180.

The previous prime is 5161139. The next prime is 5161187. The reversal of 5161181 is 1811615.

It is a happy number.

5161181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5152900 + 8281 = 2270^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 5161181 - 2¹⁰ = 5160157 is a prime.

It is a super-2 number, since 2×5161181² = 53275578629522, which contains 22 as substring.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5161187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580590 + 2580591.

It is an arithmetic number, because the mean of its divisors is an integer number (2580591).

Almost surely, 2^5161181 is an apocalyptic number.

It is an amenable number.

5161181 is a deficient number, since it is larger than the sum of its proper divisors (1).

5161181 is an equidigital number, since it uses as much as digits as its factorization.

5161181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 23.

The square root of 5161181 is about 2271.8232765776. The cubic root of 5161181 is about 172.8156343914.

Adding to 5161181 its reverse (1811615), we get a palindrome (6972796).

The spelling of 5161181 in words is "five million, one hundred sixty-one thousand, one hundred eighty-one".