124518595849 has 2 divisors, whose sum is σ = 124518595850. Its totient is φ = 124518595848.

The previous prime is 124518595841. The next prime is 124518595891. The reversal of 124518595849 is 948595815421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81521670400 + 42996925449 = 285520^2 + 207357^2 .

It is an emirp because it is prime and its reverse (948595815421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124518595849 - 2³ = 124518595841 is a prime.

It is not a weakly prime, because it can be changed into another prime (124518595841) 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, 62259297924 + 62259297925.

It is an arithmetic number, because the mean of its divisors is an integer number (62259297925).

Almost surely, 2^124518595849 is an apocalyptic number.

It is an amenable number.

124518595849 is a deficient number, since it is larger than the sum of its proper divisors (1).

124518595849 is an equidigital number, since it uses as much as digits as its factorization.

124518595849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736000, while the sum is 61.

The spelling of 124518595849 in words is "one hundred twenty-four billion, five hundred eighteen million, five hundred ninety-five thousand, eight hundred forty-nine".