125432047549 has 2 divisors, whose sum is σ = 125432047550. Its totient is φ = 125432047548.

The previous prime is 125432047537. The next prime is 125432047577. The reversal of 125432047549 is 945740234521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122675062500 + 2756985049 = 350250^2 + 52507^2 .

It is an emirp because it is prime and its reverse (945740234521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125432047549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125432047499 and 125432047508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125432047519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62716023774 + 62716023775.

It is an arithmetic number, because the mean of its divisors is an integer number (62716023775).

Almost surely, 2^125432047549 is an apocalyptic number.

It is an amenable number.

125432047549 is a deficient number, since it is larger than the sum of its proper divisors (1).

125432047549 is an equidigital number, since it uses as much as digits as its factorization.

125432047549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 125432047549 in words is "one hundred twenty-five billion, four hundred thirty-two million, forty-seven thousand, five hundred forty-nine".