6111643 has 2 divisors, whose sum is σ = 6111644. Its totient is φ = 6111642.

The previous prime is 6111617. The next prime is 6111647. The reversal of 6111643 is 3461116.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6111643 - 2¹³ = 6103451 is a prime.

6111643 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6111647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055821 + 3055822.

It is an arithmetic number, because the mean of its divisors is an integer number (3055822).

Almost surely, 2^6111643 is an apocalyptic number.

6111643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6111643 is an equidigital number, since it uses as much as digits as its factorization.

6111643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 6111643 is about 2472.1737398492. The cubic root of 6111643 is about 182.8321891230.

Adding to 6111643 its reverse (3461116), we get a palindrome (9572759).

The spelling of 6111643 in words is "six million, one hundred eleven thousand, six hundred forty-three".