125992420 has 48 divisors (see below), whose sum is σ = 279901440. Its totient is φ = 47506176.

The previous prime is 125992417. The next prime is 125992429. The reversal of 125992420 is 24299521.

It is not an unprimeable number, because it can be changed into a prime (125992429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87829 + ... + 89251.

It is an arithmetic number, because the mean of its divisors is an integer number (5831280).

Almost surely, 2^125992420 is an apocalyptic number.

125992420 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 125992420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139950720).

125992420 is an abundant number, since it is smaller than the sum of its proper divisors (153909020).

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

125992420 is a wasteful number, since it uses less digits than its factorization.

125992420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 125992420 is about 11224.6345152081. The cubic root of 125992420 is about 501.3197401736.

The spelling of 125992420 in words is "one hundred twenty-five million, nine hundred ninety-two thousand, four hundred twenty".