124249425457 has 2 divisors, whose sum is σ = 124249425458. Its totient is φ = 124249425456.

The previous prime is 124249425439. The next prime is 124249425467. The reversal of 124249425457 is 754524942421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104357425936 + 19891999521 = 323044^2 + 141039^2 .

It is a cyclic number.

It is not a de Polignac number, because 124249425457 - 2¹⁵ = 124249392689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124249425457.

It is not a weakly prime, because it can be changed into another prime (124249425467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62124712728 + 62124712729.

It is an arithmetic number, because the mean of its divisors is an integer number (62124712729).

Almost surely, 2^124249425457 is an apocalyptic number.

It is an amenable number.

124249425457 is a deficient number, since it is larger than the sum of its proper divisors (1).

124249425457 is an equidigital number, since it uses as much as digits as its factorization.

124249425457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3225600, while the sum is 49.

The spelling of 124249425457 in words is "one hundred twenty-four billion, two hundred forty-nine million, four hundred twenty-five thousand, four hundred fifty-seven".