124006513 has 2 divisors, whose sum is σ = 124006514. Its totient is φ = 124006512.

The previous prime is 124006471. The next prime is 124006543. The reversal of 124006513 is 315600421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114661264 + 9345249 = 10708^2 + 3057^2 .

It is an emirp because it is prime and its reverse (315600421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124006513 - 2¹⁷ = 123875441 is a prime.

It is not a weakly prime, because it can be changed into another prime (124006543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62003256 + 62003257.

It is an arithmetic number, because the mean of its divisors is an integer number (62003257).

Almost surely, 2^124006513 is an apocalyptic number.

It is an amenable number.

124006513 is a deficient number, since it is larger than the sum of its proper divisors (1).

124006513 is an equidigital number, since it uses as much as digits as its factorization.

124006513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 124006513 is about 11135.8211641531. The cubic root of 124006513 is about 498.6718256967.

Adding to 124006513 its reverse (315600421), we get a palindrome (439606934).

The spelling of 124006513 in words is "one hundred twenty-four million, six thousand, five hundred thirteen".