125797440 has 112 divisors (see below), whose sum is σ = 406359360. Its totient is φ = 32962560.

The previous prime is 125797417. The next prime is 125797453. The reversal of 125797440 is 44797521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55530 + ... + 57750.

Almost surely, 2^125797440 is an apocalyptic number.

125797440 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 125797440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203179680).

125797440 is an abundant number, since it is smaller than the sum of its proper divisors (280561920).

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

125797440 is a wasteful number, since it uses less digits than its factorization.

125797440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 125797440 is about 11215.9457915951. The cubic root of 125797440 is about 501.0610002975.

The spelling of 125797440 in words is "one hundred twenty-five million, seven hundred ninety-seven thousand, four hundred forty".