6118381 has 2 divisors, whose sum is σ = 6118382. Its totient is φ = 6118380.

The previous prime is 6118339. The next prime is 6118403. The reversal of 6118381 is 1838116.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4515625 + 1602756 = 2125^2 + 1266^2 .

It is a cyclic number.

It is not a de Polignac number, because 6118381 - 2²¹ = 4021229 is a prime.

It is a super-2 number, since 2×6118381² = 74869172122322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6118481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3059190 + 3059191.

It is an arithmetic number, because the mean of its divisors is an integer number (3059191).

Almost surely, 2^6118381 is an apocalyptic number.

It is an amenable number.

6118381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6118381 is an equidigital number, since it uses as much as digits as its factorization.

6118381 is an evil number, because the sum of its binary digits is even.

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

The square root of 6118381 is about 2473.5361327460. The cubic root of 6118381 is about 182.8993544139.

The spelling of 6118381 in words is "six million, one hundred eighteen thousand, three hundred eighty-one".