125721376 has 48 divisors (see below), whose sum is σ = 270920160. Its totient is φ = 56954880.

The previous prime is 125721373. The next prime is 125721377. The reversal of 125721376 is 673127521.

It is not an unprimeable number, because it can be changed into a prime (125721371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202795 + ... + 203413.

It is an arithmetic number, because the mean of its divisors is an integer number (5644170).

Almost surely, 2^125721376 is an apocalyptic number.

125721376 is a gapful number since it is divisible by the number (16) 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 125721376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135460080).

125721376 is an abundant number, since it is smaller than the sum of its proper divisors (145198784).

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

125721376 is a wasteful number, since it uses less digits than its factorization.

125721376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217 (or 1209 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The square root of 125721376 is about 11212.5543922872. The cubic root of 125721376 is about 500.9599903242.

Adding to 125721376 its reverse (673127521), we get a palindrome (798848897).

The spelling of 125721376 in words is "one hundred twenty-five million, seven hundred twenty-one thousand, three hundred seventy-six".