125730571237 has 4 divisors (see below), whose sum is σ = 128102846220. Its totient is φ = 123358296256.

The previous prime is 125730571189. The next prime is 125730571273. The reversal of 125730571237 is 732175037521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 732175037521 = 12253 ⋅59754757.

It can be written as a sum of positive squares in 2 ways, for example, as 81384107841 + 44346463396 = 285279^2 + 210586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125730571237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125730571193 and 125730571202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125730571037) 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, 1186137412 + ... + 1186137517.

It is an arithmetic number, because the mean of its divisors is an integer number (32025711555).

Almost surely, 2^125730571237 is an apocalyptic number.

It is an amenable number.

125730571237 is a deficient number, since it is larger than the sum of its proper divisors (2372274983).

125730571237 is an equidigital number, since it uses as much as digits as its factorization.

125730571237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372274982.

The product of its (nonzero) digits is 308700, while the sum is 43.

The spelling of 125730571237 in words is "one hundred twenty-five billion, seven hundred thirty million, five hundred seventy-one thousand, two hundred thirty-seven".