8361181 has 4 divisors (see below), whose sum is σ = 8374752. Its totient is φ = 8347612.

The previous prime is 8361179. The next prime is 8361191. The reversal of 8361181 is 1811638.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1811638 = 2 ⋅905819.

It is a cyclic number.

It is not a de Polignac number, because 8361181 - 2¹ = 8361179 is a prime.

It is a super-2 number, since 2×8361181² = 139818695429522, 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 (8361151) 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, 5815 + ... + 7108.

It is an arithmetic number, because the mean of its divisors is an integer number (2093688).

Almost surely, 2^8361181 is an apocalyptic number.

It is an amenable number.

8361181 is a deficient number, since it is larger than the sum of its proper divisors (13571).

8361181 is a wasteful number, since it uses less digits than its factorization.

8361181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13570.

The product of its digits is 1152, while the sum is 28.

The square root of 8361181 is about 2891.5706804434. The cubic root of 8361181 is about 202.9656489393.

The spelling of 8361181 in words is "eight million, three hundred sixty-one thousand, one hundred eighty-one".