125305215745 has 32 divisors (see below), whose sum is σ = 159438343680. Its totient is φ = 94275498240.

The previous prime is 125305215733. The next prime is 125305215793. The reversal of 125305215745 is 547512503521.

It is not a de Polignac number, because 125305215745 - 2¹¹ = 125305213697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125305215698 and 125305215707.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8657815 + ... + 8672275.

It is an arithmetic number, because the mean of its divisors is an integer number (4982448240).

Almost surely, 2^125305215745 is an apocalyptic number.

It is an amenable number.

125305215745 is a deficient number, since it is larger than the sum of its proper divisors (34133127935).

125305215745 is a wasteful number, since it uses less digits than its factorization.

125305215745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15145.

The product of its (nonzero) digits is 210000, while the sum is 40.

The spelling of 125305215745 in words is "one hundred twenty-five billion, three hundred five million, two hundred fifteen thousand, seven hundred forty-five".