6413181 has 4 divisors (see below), whose sum is σ = 8550912. Its totient is φ = 4275452.

The previous prime is 6413177. The next prime is 6413189. The reversal of 6413181 is 1813146.

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.

It is a cyclic number.

It is not a de Polignac number, because 6413181 - 2² = 6413177 is a prime.

It is a super-2 number, since 2×6413181² = 82257781077522, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6413189) 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, 1068861 + ... + 1068866.

It is an arithmetic number, because the mean of its divisors is an integer number (2137728).

Almost surely, 2^6413181 is an apocalyptic number.

It is an amenable number.

6413181 is a deficient number, since it is larger than the sum of its proper divisors (2137731).

6413181 is a wasteful number, since it uses less digits than its factorization.

6413181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137730.

The product of its digits is 576, while the sum is 24.

The square root of 6413181 is about 2532.4259120456. The cubic root of 6413181 is about 185.7909259053.

The spelling of 6413181 in words is "six million, four hundred thirteen thousand, one hundred eighty-one".