124657747397 has 2 divisors, whose sum is σ = 124657747398. Its totient is φ = 124657747396.

The previous prime is 124657747381. The next prime is 124657747399. The reversal of 124657747397 is 793747756421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121082424961 + 3575322436 = 347969^2 + 59794^2 .

It is an emirp because it is prime and its reverse (793747756421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124657747397 - 2⁴ = 124657747381 is a prime.

Together with 124657747399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124657747399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62328873698 + 62328873699.

It is an arithmetic number, because the mean of its divisors is an integer number (62328873699).

Almost surely, 2^124657747397 is an apocalyptic number.

It is an amenable number.

124657747397 is a deficient number, since it is larger than the sum of its proper divisors (1).

124657747397 is an equidigital number, since it uses as much as digits as its factorization.

124657747397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62233920, while the sum is 62.

The spelling of 124657747397 in words is "one hundred twenty-four billion, six hundred fifty-seven million, seven hundred forty-seven thousand, three hundred ninety-seven".