125043242 has 16 divisors (see below), whose sum is σ = 189528000. Its totient is φ = 61871040.

The previous prime is 125043223. The next prime is 125043257. The reversal of 125043242 is 242340521.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83234 + ... + 84722.

It is an arithmetic number, because the mean of its divisors is an integer number (11845500).

Almost surely, 2^125043242 is an apocalyptic number.

125043242 is a deficient number, since it is larger than the sum of its proper divisors (64484758).

125043242 is a wasteful number, since it uses less digits than its factorization.

125043242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 125043242 is about 11182.2735613112. The cubic root of 125043242 is about 500.0576493528.

Adding to 125043242 its reverse (242340521), we get a palindrome (367383763).

The spelling of 125043242 in words is "one hundred twenty-five million, forty-three thousand, two hundred forty-two".