126401683139 has 2 divisors, whose sum is σ = 126401683140. Its totient is φ = 126401683138.

The previous prime is 126401683129. The next prime is 126401683217. The reversal of 126401683139 is 931386104621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126401683139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126401683139.

It is not a weakly prime, because it can be changed into another prime (126401683129) 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, 63200841569 + 63200841570.

It is an arithmetic number, because the mean of its divisors is an integer number (63200841570).

Almost surely, 2^126401683139 is an apocalyptic number.

126401683139 is a deficient number, since it is larger than the sum of its proper divisors (1).

126401683139 is an equidigital number, since it uses as much as digits as its factorization.

126401683139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 126401683139 in words is "one hundred twenty-six billion, four hundred one million, six hundred eighty-three thousand, one hundred thirty-nine".