6228139 has 2 divisors, whose sum is σ = 6228140. Its totient is φ = 6228138.

The previous prime is 6228121. The next prime is 6228203. The reversal of 6228139 is 9318226.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6228139 - 2¹³ = 6219947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6228139.

It is not a weakly prime, because it can be changed into another prime (6228539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3114069 + 3114070.

It is an arithmetic number, because the mean of its divisors is an integer number (3114070).

Almost surely, 2^6228139 is an apocalyptic number.

6228139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6228139 is an equidigital number, since it uses as much as digits as its factorization.

6228139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 6228139 is about 2495.6239700724. The cubic root of 6228139 is about 183.9865597461.

The spelling of 6228139 in words is "six million, two hundred twenty-eight thousand, one hundred thirty-nine".