6219121 has 2 divisors, whose sum is σ = 6219122. Its totient is φ = 6219120.

The previous prime is 6219113. The next prime is 6219139. The reversal of 6219121 is 1219126.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5948721 + 270400 = 2439^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 6219121 - 2³ = 6219113 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6219092 and 6219101.

It is not a weakly prime, because it can be changed into another prime (6219221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3109560 + 3109561.

It is an arithmetic number, because the mean of its divisors is an integer number (3109561).

Almost surely, 2^6219121 is an apocalyptic number.

It is an amenable number.

6219121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6219121 is an equidigital number, since it uses as much as digits as its factorization.

6219121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 22.

The square root of 6219121 is about 2493.8165529966. The cubic root of 6219121 is about 183.8977160724.

The spelling of 6219121 in words is "six million, two hundred nineteen thousand, one hundred twenty-one".