125542044 has 72 divisors (see below), whose sum is σ = 345618000. Its totient is φ = 38271744.

The previous prime is 125542009. The next prime is 125542049. The reversal of 125542044 is 440245521.

It is a junction number, because it is equal to n+sod(n) for n = 125541999 and 125542017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125542049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16672 + ... + 23000.

It is an arithmetic number, because the mean of its divisors is an integer number (4800250).

Almost surely, 2^125542044 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 125542044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172809000).

125542044 is an abundant number, since it is smaller than the sum of its proper divisors (220075956).

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

125542044 is a wasteful number, since it uses less digits than its factorization.

125542044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6387 (or 6382 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 125542044 is about 11204.5546096219. The cubic root of 125542044 is about 500.7216831789.

Adding to 125542044 its reverse (440245521), we get a palindrome (565787565).

The spelling of 125542044 in words is "one hundred twenty-five million, five hundred forty-two thousand, forty-four".