125158942775 has 6 divisors (see below), whose sum is σ = 155197089072. Its totient is φ = 100127154200.

The previous prime is 125158942771. The next prime is 125158942817. The reversal of 125158942775 is 577249851521.

It is not a de Polignac number, because 125158942775 - 2² = 125158942771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125158942775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125158942771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2503178831 + ... + 2503178880.

It is an arithmetic number, because the mean of its divisors is an integer number (25866181512).

Almost surely, 2^125158942775 is an apocalyptic number.

125158942775 is a deficient number, since it is larger than the sum of its proper divisors (30038146297).

125158942775 is an equidigital number, since it uses as much as digits as its factorization.

125158942775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006357721 (or 5006357716 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 56.

The spelling of 125158942775 in words is "one hundred twenty-five billion, one hundred fifty-eight million, nine hundred forty-two thousand, seven hundred seventy-five".