124242440137 has 2 divisors, whose sum is σ = 124242440138. Its totient is φ = 124242440136.

The previous prime is 124242440111. The next prime is 124242440159. The reversal of 124242440137 is 731044242421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124188579216 + 53860921 = 352404^2 + 7339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124242440137 is a prime.

It is not a weakly prime, because it can be changed into another prime (124242440177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62121220068 + 62121220069.

It is an arithmetic number, because the mean of its divisors is an integer number (62121220069).

Almost surely, 2^124242440137 is an apocalyptic number.

It is an amenable number.

124242440137 is a deficient number, since it is larger than the sum of its proper divisors (1).

124242440137 is an equidigital number, since it uses as much as digits as its factorization.

124242440137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 34.

Adding to 124242440137 its reverse (731044242421), we get a palindrome (855286682558).

The spelling of 124242440137 in words is "one hundred twenty-four billion, two hundred forty-two million, four hundred forty thousand, one hundred thirty-seven".