124224013 has 2 divisors, whose sum is σ = 124224014. Its totient is φ = 124224012.

The previous prime is 124224007. The next prime is 124224019. The reversal of 124224013 is 310422421.

It is a balanced prime because it is at equal distance from previous prime (124224007) and next prime (124224019).

It can be written as a sum of positive squares in only one way, i.e., 66797929 + 57426084 = 8173^2 + 7578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124224013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124224019) 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, 62112006 + 62112007.

It is an arithmetic number, because the mean of its divisors is an integer number (62112007).

Almost surely, 2^124224013 is an apocalyptic number.

It is an amenable number.

124224013 is a deficient number, since it is larger than the sum of its proper divisors (1).

124224013 is an equidigital number, since it uses as much as digits as its factorization.

124224013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 124224013 is about 11145.5826675863. The cubic root of 124224013 is about 498.9632022535.

Adding to 124224013 its reverse (310422421), we get a palindrome (434646434).

The spelling of 124224013 in words is "one hundred twenty-four million, two hundred twenty-four thousand, thirteen".