125442456 has 64 divisors (see below), whose sum is σ = 334730880. Its totient is φ = 39037440.

The previous prime is 125442431. The next prime is 125442463. The reversal of 125442456 is 654244521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52275 + ... + 54621.

It is an arithmetic number, because the mean of its divisors is an integer number (5230170).

Almost surely, 2^125442456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125442456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167365440).

125442456 is an abundant number, since it is smaller than the sum of its proper divisors (209288424).

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

125442456 is a wasteful number, since it uses less digits than its factorization.

125442456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504 (or 2500 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 125442456 is about 11200.1096423205. The cubic root of 125442456 is about 500.5892466373.

Adding to 125442456 its reverse (654244521), we get a palindrome (779686977).

The spelling of 125442456 in words is "one hundred twenty-five million, four hundred forty-two thousand, four hundred fifty-six".