125992320 has 128 divisors (see below), whose sum is σ = 404801280. Its totient is φ = 33331200.

The previous prime is 125992297. The next prime is 125992333. The reversal of 125992320 is 23299521.

It is a tau number, because it is divible by the number of its divisors (128).

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, 404965 + ... + 405275.

It is an arithmetic number, because the mean of its divisors is an integer number (3162510).

Almost surely, 2^125992320 is an apocalyptic number.

125992320 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 125992320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202400640).

125992320 is an abundant number, since it is smaller than the sum of its proper divisors (278808960).

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

125992320 is a wasteful number, since it uses less digits than its factorization.

125992320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 125992320 is about 11224.6300607192. The cubic root of 125992320 is about 501.3196075413.

The spelling of 125992320 in words is "one hundred twenty-five million, nine hundred ninety-two thousand, three hundred twenty".