3113181 has 8 divisors (see below), whose sum is σ = 4612160. Its totient is φ = 2075436.

The previous prime is 3113177. The next prime is 3113189. The reversal of 3113181 is 1813113.

3113181 = 50² + 51² + ... + 211².

It is a happy number.

It is not a de Polignac number, because 3113181 - 2² = 3113177 is a prime.

It is a super-2 number, since 2×3113181² = 19383791877522, 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 (3113189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57625 + ... + 57678.

It is an arithmetic number, because the mean of its divisors is an integer number (576520).

Almost surely, 2^3113181 is an apocalyptic number.

It is an amenable number.

3113181 is a deficient number, since it is larger than the sum of its proper divisors (1498979).

3113181 is a wasteful number, since it uses less digits than its factorization.

3113181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115312 (or 115306 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 3113181 is about 1764.4208681604. The cubic root of 3113181 is about 146.0163395737.

Adding to 3113181 its reverse (1813113), we get a palindrome (4926294).

The spelling of 3113181 in words is "three million, one hundred thirteen thousand, one hundred eighty-one".