125471440 has 160 divisors (see below), whose sum is σ = 332478720. Its totient is φ = 43794432.

The previous prime is 125471431. The next prime is 125471443. The reversal of 125471440 is 44174521.

It is a junction number, because it is equal to n+sod(n) for n = 125471399 and 125471408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125471443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1293472 + ... + 1293568.

It is an arithmetic number, because the mean of its divisors is an integer number (2077992).

Almost surely, 2^125471440 is an apocalyptic number.

125471440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125471440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166239360).

125471440 is an abundant number, since it is smaller than the sum of its proper divisors (207007280).

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

125471440 is a wasteful number, since it uses less digits than its factorization.

125471440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 125471440 is about 11201.4034834926. The cubic root of 125471440 is about 500.6277980759.

The spelling of 125471440 in words is "one hundred twenty-five million, four hundred seventy-one thousand, four hundred forty".