126375063257 has 2 divisors, whose sum is σ = 126375063258. Its totient is φ = 126375063256.

The previous prime is 126375063253. The next prime is 126375063271. The reversal of 126375063257 is 752360573621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118242450496 + 8132612761 = 343864^2 + 90181^2 .

It is an emirp because it is prime and its reverse (752360573621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126375063257 - 2² = 126375063253 is a prime.

It is a super-2 number, since 2×126375063257² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126375063253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63187531628 + 63187531629.

It is an arithmetic number, because the mean of its divisors is an integer number (63187531629).

Almost surely, 2^126375063257 is an apocalyptic number.

It is an amenable number.

126375063257 is a deficient number, since it is larger than the sum of its proper divisors (1).

126375063257 is an equidigital number, since it uses as much as digits as its factorization.

126375063257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 47.

The spelling of 126375063257 in words is "one hundred twenty-six billion, three hundred seventy-five million, sixty-three thousand, two hundred fifty-seven".