125535722192 has 20 divisors (see below), whose sum is σ = 243241594116. Its totient is φ = 62763697920.

The previous prime is 125535722177. The next prime is 125535722197. The reversal of 125535722192 is 291227535521.

It can be written as a sum of positive squares in 2 ways, for example, as 105861732496 + 19673989696 = 325364^2 + 140264^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125535722197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3773 + ... + 501084.

Almost surely, 2^125535722192 is an apocalyptic number.

It is an amenable number.

125535722192 is a deficient number, since it is larger than the sum of its proper divisors (117705871924).

125535722192 is a wasteful number, since it uses less digits than its factorization.

125535722192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520406 (or 520400 counting only the distinct ones).

The product of its digits is 378000, while the sum is 44.

The spelling of 125535722192 in words is "one hundred twenty-five billion, five hundred thirty-five million, seven hundred twenty-two thousand, one hundred ninety-two".