126341257633 has 2 divisors, whose sum is σ = 126341257634. Its totient is φ = 126341257632.

The previous prime is 126341257631. The next prime is 126341257673. The reversal of 126341257633 is 336752143621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105656202304 + 20685055329 = 325048^2 + 143823^2 .

It is an emirp because it is prime and its reverse (336752143621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126341257633 - 2¹ = 126341257631 is a prime.

It is a super-2 number, since 2×126341257633² (a number of 23 digits) contains 22 as substring.

Together with 126341257631, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 126341257633.

It is not a weakly prime, because it can be changed into another prime (126341257631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63170628816 + 63170628817.

It is an arithmetic number, because the mean of its divisors is an integer number (63170628817).

Almost surely, 2^126341257633 is an apocalyptic number.

It is an amenable number.

126341257633 is a deficient number, since it is larger than the sum of its proper divisors (1).

126341257633 is an equidigital number, since it uses as much as digits as its factorization.

126341257633 is an evil number, because the sum of its binary digits is even.

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

The spelling of 126341257633 in words is "one hundred twenty-six billion, three hundred forty-one million, two hundred fifty-seven thousand, six hundred thirty-three".