124220177489 has 2 divisors, whose sum is σ = 124220177490. Its totient is φ = 124220177488.

The previous prime is 124220177479. The next prime is 124220177519. The reversal of 124220177489 is 984771022421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121952513089 + 2267664400 = 349217^2 + 47620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124220177489 is a prime.

It is not a weakly prime, because it can be changed into another prime (124220177429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62110088744 + 62110088745.

It is an arithmetic number, because the mean of its divisors is an integer number (62110088745).

Almost surely, 2^124220177489 is an apocalyptic number.

It is an amenable number.

124220177489 is a deficient number, since it is larger than the sum of its proper divisors (1).

124220177489 is an equidigital number, since it uses as much as digits as its factorization.

124220177489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 124220177489 in words is "one hundred twenty-four billion, two hundred twenty million, one hundred seventy-seven thousand, four hundred eighty-nine".