125776242 has 24 divisors (see below), whose sum is σ = 272744316. Its totient is φ = 41890176.

The previous prime is 125776241. The next prime is 125776271. The reversal of 125776242 is 242677521.

It is a happy number.

125776242 is a `hidden beast` number, since 1 + 25 + 7 + 7 + 624 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 123676641 + 2099601 = 11121^2 + 1449^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125776197 and 125776206.

It is not an unprimeable number, because it can be changed into a prime (125776241) 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 11 ways as a sum of consecutive naturals, for example, 27718 + ... + 31934.

Almost surely, 2^125776242 is an apocalyptic number.

125776242 is an abundant number, since it is smaller than the sum of its proper divisors (146968074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125776242 is a wasteful number, since it uses less digits than its factorization.

125776242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882 (or 5879 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 125776242 is about 11215.0007579135. Note that the first 3 decimals coincide. The cubic root of 125776242 is about 501.0328542883.

The spelling of 125776242 in words is "one hundred twenty-five million, seven hundred seventy-six thousand, two hundred forty-two".