15124661417 has 2 divisors, whose sum is σ = 15124661418. Its totient is φ = 15124661416.

The previous prime is 15124661413. The next prime is 15124661443. The reversal of 15124661417 is 71416642151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9286020496 + 5838640921 = 96364^2 + 76411^2 .

It is an emirp because it is prime and its reverse (71416642151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15124661417 - 2² = 15124661413 is a prime.

It is not a weakly prime, because it can be changed into another prime (15124661413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7562330708 + 7562330709.

It is an arithmetic number, because the mean of its divisors is an integer number (7562330709).

Almost surely, 2^15124661417 is an apocalyptic number.

It is an amenable number.

15124661417 is a deficient number, since it is larger than the sum of its proper divisors (1).

15124661417 is an equidigital number, since it uses as much as digits as its factorization.

15124661417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The spelling of 15124661417 in words is "fifteen billion, one hundred twenty-four million, six hundred sixty-one thousand, four hundred seventeen".