126241081919 has 2 divisors, whose sum is σ = 126241081920. Its totient is φ = 126241081918.

The previous prime is 126241081907. The next prime is 126241081933. The reversal of 126241081919 is 919180142621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126241081919 is a prime.

It is a super-2 number, since 2×126241081919² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126241081919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126241081969) 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, 63120540959 + 63120540960.

It is an arithmetic number, because the mean of its divisors is an integer number (63120540960).

Almost surely, 2^126241081919 is an apocalyptic number.

126241081919 is a deficient number, since it is larger than the sum of its proper divisors (1).

126241081919 is an equidigital number, since it uses as much as digits as its factorization.

126241081919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 44.

The spelling of 126241081919 in words is "one hundred twenty-six billion, two hundred forty-one million, eighty-one thousand, nine hundred nineteen".