125844399139 has 2 divisors, whose sum is σ = 125844399140. Its totient is φ = 125844399138.

The previous prime is 125844399127. The next prime is 125844399143. The reversal of 125844399139 is 931993448521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125844399139 - 2⁷ = 125844399011 is a prime.

It is not a weakly prime, because it can be changed into another prime (125844399199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62922199569 + 62922199570.

It is an arithmetic number, because the mean of its divisors is an integer number (62922199570).

Almost surely, 2^125844399139 is an apocalyptic number.

125844399139 is a deficient number, since it is larger than the sum of its proper divisors (1).

125844399139 is an equidigital number, since it uses as much as digits as its factorization.

125844399139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 58.

The spelling of 125844399139 in words is "one hundred twenty-five billion, eight hundred forty-four million, three hundred ninety-nine thousand, one hundred thirty-nine".