3124421 has 2 divisors, whose sum is σ = 3124422. Its totient is φ = 3124420.

The previous prime is 3124409. The next prime is 3124427. The reversal of 3124421 is 1244213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2044900 + 1079521 = 1430^2 + 1039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3124421 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3124421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3124427) 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, 1562210 + 1562211.

It is an arithmetic number, because the mean of its divisors is an integer number (1562211).

Almost surely, 2^3124421 is an apocalyptic number.

It is an amenable number.

3124421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3124421 is an equidigital number, since it uses as much as digits as its factorization.

3124421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 17.

The square root of 3124421 is about 1767.6031794495. The cubic root of 3124421 is about 146.1918569862.

Adding to 3124421 its reverse (1244213), we get a palindrome (4368634).

The spelling of 3124421 in words is "three million, one hundred twenty-four thousand, four hundred twenty-one".