126445509937 has 2 divisors, whose sum is σ = 126445509938. Its totient is φ = 126445509936.

The previous prime is 126445509923. The next prime is 126445509959. The reversal of 126445509937 is 739905544621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115517734641 + 10927775296 = 339879^2 + 104536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126445509937 is a prime.

It is not a weakly prime, because it can be changed into another prime (126445509977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63222754968 + 63222754969.

It is an arithmetic number, because the mean of its divisors is an integer number (63222754969).

Almost surely, 2^126445509937 is an apocalyptic number.

It is an amenable number.

126445509937 is a deficient number, since it is larger than the sum of its proper divisors (1).

126445509937 is an equidigital number, since it uses as much as digits as its factorization.

126445509937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 126445509937 in words is "one hundred twenty-six billion, four hundred forty-five million, five hundred nine thousand, nine hundred thirty-seven".