125753744161 has 4 divisors (see below), whose sum is σ = 125774261424. Its totient is φ = 125733226900.

The previous prime is 125753744141. The next prime is 125753744167. The reversal of 125753744161 is 161447357521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125753744161 - 2¹¹ = 125753742113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125753744167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10249435 + ... + 10261696.

It is an arithmetic number, because the mean of its divisors is an integer number (31443565356).

Almost surely, 2^125753744161 is an apocalyptic number.

It is an amenable number.

125753744161 is a deficient number, since it is larger than the sum of its proper divisors (20517263).

125753744161 is an equidigital number, since it uses as much as digits as its factorization.

125753744161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20517262.

The product of its digits is 705600, while the sum is 46.

The spelling of 125753744161 in words is "one hundred twenty-five billion, seven hundred fifty-three million, seven hundred forty-four thousand, one hundred sixty-one".