124140226488217 has 2 divisors, whose sum is σ = 124140226488218. Its totient is φ = 124140226488216.

The previous prime is 124140226488197. The next prime is 124140226488241. The reversal of 124140226488217 is 712884622041421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106101144892681 + 18039081595536 = 10300541^2 + 4247244^2 .

It is an emirp because it is prime and its reverse (712884622041421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124140226488217 - 2²³ = 124140218099609 is a prime.

It is not a weakly prime, because it can be changed into another prime (124140226488247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62070113244108 + 62070113244109.

It is an arithmetic number, because the mean of its divisors is an integer number (62070113244109).

Almost surely, 2^{124140226488217} is an apocalyptic number.

It is an amenable number.

124140226488217 is a deficient number, since it is larger than the sum of its proper divisors (1).

124140226488217 is an equidigital number, since it uses as much as digits as its factorization.

124140226488217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2752512, while the sum is 52.

The spelling of 124140226488217 in words is "one hundred twenty-four trillion, one hundred forty billion, two hundred twenty-six million, four hundred eighty-eight thousand, two hundred seventeen".