6311189 has 2 divisors, whose sum is σ = 6311190. Its totient is φ = 6311188.

The previous prime is 6311167. The next prime is 6311191. The reversal of 6311189 is 9811136.

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., 5244100 + 1067089 = 2290^2 + 1033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6311189 is a prime.

It is a super-2 number, since 2×6311189² = 79662213187442, which contains 22 as substring.

Together with 6311191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6311159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3155594 + 3155595.

It is an arithmetic number, because the mean of its divisors is an integer number (3155595).

Almost surely, 2^6311189 is an apocalyptic number.

It is an amenable number.

6311189 is a deficient number, since it is larger than the sum of its proper divisors (1).

6311189 is an equidigital number, since it uses as much as digits as its factorization.

6311189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 29.

The square root of 6311189 is about 2512.2079929815. The cubic root of 6311189 is about 184.8007496862.

The spelling of 6311189 in words is "six million, three hundred eleven thousand, one hundred eighty-nine".