125412556849 has 8 divisors (see below), whose sum is σ = 130888562112. Its totient is φ = 119938492080.

The previous prime is 125412556751. The next prime is 125412556873. The reversal of 125412556849 is 948655214521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125412556849 - 2⁹ = 125412556337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125412556796 and 125412556805.

It is not an unprimeable number, because it can be changed into a prime (125412556249) 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 in 7 ways as a sum of consecutive naturals, for example, 352267 + ... + 612304.

It is an arithmetic number, because the mean of its divisors is an integer number (16361070264).

Almost surely, 2^125412556849 is an apocalyptic number.

It is an amenable number.

125412556849 is a deficient number, since it is larger than the sum of its proper divisors (5476005263).

125412556849 is an equidigital number, since it uses as much as digits as its factorization.

125412556849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970247.

The product of its digits is 3456000, while the sum is 52.

The spelling of 125412556849 in words is "one hundred twenty-five billion, four hundred twelve million, five hundred fifty-six thousand, eight hundred forty-nine".