4113181 has 2 divisors, whose sum is σ = 4113182. Its totient is φ = 4113180.

The previous prime is 4113143. The next prime is 4113191. The reversal of 4113181 is 1813114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2528100 + 1585081 = 1590^2 + 1259^2 .

It is a cyclic number.

It is not a de Polignac number, because 4113181 - 2¹⁵ = 4080413 is a prime.

It is a super-2 number, since 2×4113181² = 33836515877522, which contains 22 as substring.

It is a Chen prime.

4113181 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4113121) 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 as a sum of consecutive naturals, namely, 2056590 + 2056591.

It is an arithmetic number, because the mean of its divisors is an integer number (2056591).

Almost surely, 2^4113181 is an apocalyptic number.

It is an amenable number.

4113181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4113181 is an equidigital number, since it uses as much as digits as its factorization.

4113181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 19.

The square root of 4113181 is about 2028.0978773225. The cubic root of 4113181 is about 160.2233988732.

Adding to 4113181 its reverse (1813114), we get a palindrome (5926295).

The spelling of 4113181 in words is "four million, one hundred thirteen thousand, one hundred eighty-one".