125126442 has 48 divisors (see below), whose sum is σ = 312766272. Its totient is φ = 35412480.

The previous prime is 125126437. The next prime is 125126459. The reversal of 125126442 is 244621521.

125126442 is a `hidden beast` number, since 1 + 2 + 5 + 12 + 644 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8842 + ... + 18122.

It is an arithmetic number, because the mean of its divisors is an integer number (6515964).

Almost surely, 2^125126442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125126442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156383136).

125126442 is an abundant number, since it is smaller than the sum of its proper divisors (187639830).

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

125126442 is a wasteful number, since it uses less digits than its factorization.

125126442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9403 (or 9400 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 125126442 is about 11185.9931163934. The cubic root of 125126442 is about 500.1685325205.

Adding to 125126442 its reverse (244621521), we get a palindrome (369747963).

The spelling of 125126442 in words is "one hundred twenty-five million, one hundred twenty-six thousand, four hundred forty-two".