126326250637 has 2 divisors, whose sum is σ = 126326250638. Its totient is φ = 126326250636.

The previous prime is 126326250581. The next prime is 126326250671. The reversal of 126326250637 is 736052623621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84456496996 + 41869753641 = 290614^2 + 204621^2 .

It is a cyclic number.

It is not a de Polignac number, because 126326250637 - 2¹¹ = 126326248589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126326250593 and 126326250602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126326250937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63163125318 + 63163125319.

It is an arithmetic number, because the mean of its divisors is an integer number (63163125319).

Almost surely, 2^126326250637 is an apocalyptic number.

It is an amenable number.

126326250637 is a deficient number, since it is larger than the sum of its proper divisors (1).

126326250637 is an equidigital number, since it uses as much as digits as its factorization.

126326250637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 126326250637 in words is "one hundred twenty-six billion, three hundred twenty-six million, two hundred fifty thousand, six hundred thirty-seven".