124661617 has 2 divisors, whose sum is σ = 124661618. Its totient is φ = 124661616.

The previous prime is 124661599. The next prime is 124661639. The reversal of 124661617 is 716166421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75325041 + 49336576 = 8679^2 + 7024^2 .

It is a cyclic number.

It is not a de Polignac number, because 124661617 - 2¹¹ = 124659569 is a prime.

It is not a weakly prime, because it can be changed into another prime (124661657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62330808 + 62330809.

It is an arithmetic number, because the mean of its divisors is an integer number (62330809).

Almost surely, 2^124661617 is an apocalyptic number.

It is an amenable number.

124661617 is a deficient number, since it is larger than the sum of its proper divisors (1).

124661617 is an equidigital number, since it uses as much as digits as its factorization.

124661617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 124661617 is about 11165.1966843401. The cubic root of 124661617 is about 499.5484149313.

The spelling of 124661617 in words is "one hundred twenty-four million, six hundred sixty-one thousand, six hundred seventeen".