124530542449 has 2 divisors, whose sum is σ = 124530542450. Its totient is φ = 124530542448.

The previous prime is 124530542443. The next prime is 124530542467. The reversal of 124530542449 is 944245035421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80375085025 + 44155457424 = 283505^2 + 210132^2 .

It is a cyclic number.

It is not a de Polignac number, because 124530542449 - 2²¹ = 124528445297 is a prime.

It is not a weakly prime, because it can be changed into another prime (124530542443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62265271224 + 62265271225.

It is an arithmetic number, because the mean of its divisors is an integer number (62265271225).

Almost surely, 2^124530542449 is an apocalyptic number.

It is an amenable number.

124530542449 is a deficient number, since it is larger than the sum of its proper divisors (1).

124530542449 is an equidigital number, since it uses as much as digits as its factorization.

124530542449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 124530542449 in words is "one hundred twenty-four billion, five hundred thirty million, five hundred forty-two thousand, four hundred forty-nine".