4115181 has 16 divisors (see below), whose sum is σ = 6324224. Its totient is φ = 2331504.

The previous prime is 4115149. The next prime is 4115201. The reversal of 4115181 is 1815114.

It is a happy number.

It is not a de Polignac number, because 4115181 - 2⁵ = 4115149 is a prime.

It is a super-2 number, since 2×4115181² = 33869429325522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

4115181 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4115101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1896 + ... + 3438.

It is an arithmetic number, because the mean of its divisors is an integer number (395264).

Almost surely, 2^4115181 is an apocalyptic number.

It is an amenable number.

4115181 is a deficient number, since it is larger than the sum of its proper divisors (2209043).

4115181 is a wasteful number, since it uses less digits than its factorization.

4115181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680.

The product of its digits is 160, while the sum is 21.

The square root of 4115181 is about 2028.5908902487. The cubic root of 4115181 is about 160.2493637630.

The spelling of 4115181 in words is "four million, one hundred fifteen thousand, one hundred eighty-one".