125652715189 has 4 divisors (see below), whose sum is σ = 126896801580. Its totient is φ = 124408628800.

The previous prime is 125652715171. The next prime is 125652715231. The reversal of 125652715189 is 981517256521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112000662225 + 13652052964 = 334665^2 + 116842^2 .

It is a cyclic number.

It is not a de Polignac number, because 125652715189 - 2⁵ = 125652715157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125652715169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622043044 + ... + 622043245.

It is an arithmetic number, because the mean of its divisors is an integer number (31724200395).

Almost surely, 2^125652715189 is an apocalyptic number.

It is an amenable number.

125652715189 is a deficient number, since it is larger than the sum of its proper divisors (1244086391).

125652715189 is a wasteful number, since it uses less digits than its factorization.

125652715189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244086390.

The product of its digits is 1512000, while the sum is 52.

The spelling of 125652715189 in words is "one hundred twenty-five billion, six hundred fifty-two million, seven hundred fifteen thousand, one hundred eighty-nine".