6124421 has 2 divisors, whose sum is σ = 6124422. Its totient is φ = 6124420.

The previous prime is 6124411. The next prime is 6124427. The reversal of 6124421 is 1244216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5827396 + 297025 = 2414^2 + 545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6124421 is a prime.

It is a Chen prime.

It is equal to p₄₂₀₈₁₅ and since 6124421 and 420815 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 6124393 and 6124402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6124427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3062210 + 3062211.

It is an arithmetic number, because the mean of its divisors is an integer number (3062211).

Almost surely, 2^6124421 is an apocalyptic number.

It is an amenable number.

6124421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6124421 is an equidigital number, since it uses as much as digits as its factorization.

6124421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 20.

The square root of 6124421 is about 2474.7567557237. The cubic root of 6124421 is about 182.9595200460.

Adding to 6124421 its reverse (1244216), we get a palindrome (7368637).

The spelling of 6124421 in words is "six million, one hundred twenty-four thousand, four hundred twenty-one".