125487144 has 56 divisors (see below), whose sum is σ = 352787610. Its totient is φ = 41827104.

The previous prime is 125487143. The next prime is 125487151. The reversal of 125487144 is 441784521.

It is a happy number.

125487144 is a `hidden beast` number, since 1 + 2 + 548 + 71 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 113167044 + 12320100 = 10638^2 + 3510^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 125487099 and 125487108.

It is not an unprimeable number, because it can be changed into a prime (125487143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 4927 + ... + 16590.

Almost surely, 2^125487144 is an apocalyptic number.

It is an amenable number.

125487144 is an abundant number, since it is smaller than the sum of its proper divisors (227300466).

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

125487144 is an equidigital number, since it uses as much as digits as its factorization.

125487144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21541 (or 21522 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 125487144 is about 11202.1044451478. The cubic root of 125487144 is about 500.6486833891.

The spelling of 125487144 in words is "one hundred twenty-five million, four hundred eighty-seven thousand, one hundred forty-four".