6226181 has 4 divisors (see below), whose sum is σ = 6705132. Its totient is φ = 5747232.

The previous prime is 6226177. The next prime is 6226201. The reversal of 6226181 is 1816226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1816226 = 2 ⋅908113.

It can be written as a sum of positive squares in 2 ways, for example, as 982081 + 5244100 = 991^2 + 2290^2 .

It is a cyclic number.

It is not a de Polignac number, because 6226181 - 2² = 6226177 is a prime.

It is a super-2 number, since 2×6226181² = 77530659689522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6226181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6226141) 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, 239456 + ... + 239481.

It is an arithmetic number, because the mean of its divisors is an integer number (1676283).

Almost surely, 2^6226181 is an apocalyptic number.

It is an amenable number.

6226181 is a deficient number, since it is larger than the sum of its proper divisors (478951).

6226181 is a wasteful number, since it uses less digits than its factorization.

6226181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478950.

The product of its digits is 1152, while the sum is 26.

The square root of 6226181 is about 2495.2316525726. The cubic root of 6226181 is about 183.9672771834.

The spelling of 6226181 in words is "six million, two hundred twenty-six thousand, one hundred eighty-one".