125443242 has 80 divisors (see below), whose sum is σ = 296695872. Its totient is φ = 39536640.

The previous prime is 125443237. The next prime is 125443243. The reversal of 125443242 is 242344521.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125443243) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 487978 + ... + 488234.

Almost surely, 2^125443242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125443242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148347936).

125443242 is an abundant number, since it is smaller than the sum of its proper divisors (171252630).

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

125443242 is a wasteful number, since it uses less digits than its factorization.

125443242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 416 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 125443242 is about 11200.1447312077. The cubic root of 125443242 is about 500.5902921694.

Adding to 125443242 its reverse (242344521), we get a palindrome (367787763).

The spelling of 125443242 in words is "one hundred twenty-five million, four hundred forty-three thousand, two hundred forty-two".