126137637541 has 2 divisors, whose sum is σ = 126137637542. Its totient is φ = 126137637540.

The previous prime is 126137637449. The next prime is 126137637557. The reversal of 126137637541 is 145736731621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112272575041 + 13865062500 = 335071^2 + 117750^2 .

It is a cyclic number.

It is not a de Polignac number, because 126137637541 - 2⁹ = 126137637029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126137637491 and 126137637500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126137634541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63068818770 + 63068818771.

It is an arithmetic number, because the mean of its divisors is an integer number (63068818771).

Almost surely, 2^126137637541 is an apocalyptic number.

It is an amenable number.

126137637541 is a deficient number, since it is larger than the sum of its proper divisors (1).

126137637541 is an equidigital number, since it uses as much as digits as its factorization.

126137637541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 46.

The spelling of 126137637541 in words is "one hundred twenty-six billion, one hundred thirty-seven million, six hundred thirty-seven thousand, five hundred forty-one".