125345440 has 96 divisors (see below), whose sum is σ = 325503360. Its totient is φ = 45235200.

The previous prime is 125345417. The next prime is 125345461. The reversal of 125345440 is 44543521.

It is a super-2 number, since 2×125345440² = 31422958657587200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125345399 and 125345408.

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, 402885 + ... + 403195.

It is an arithmetic number, because the mean of its divisors is an integer number (3390660).

Almost surely, 2^125345440 is an apocalyptic number.

125345440 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 125345440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162751680).

125345440 is an abundant number, since it is smaller than the sum of its proper divisors (200157920).

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

125345440 is a wasteful number, since it uses less digits than its factorization.

125345440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 125345440 is about 11195.7777755724. Note that the first 5 decimals coincide. The cubic root of 125345440 is about 500.4601630367.

Adding to 125345440 its reverse (44543521), we get a palindrome (169888961).

The spelling of 125345440 in words is "one hundred twenty-five million, three hundred forty-five thousand, four hundred forty".