125112 has 32 divisors (see below), whose sum is σ = 337680. Its totient is φ = 38400.

The previous prime is 125107. The next prime is 125113. The reversal of 125112 is 211521.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125113) by changing a digit.

125112 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112 + ... + 512.

2¹²⁵¹¹² is an apocalyptic number.

125112 is a gapful number since it is divisible by the number (12) 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 125112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168840).

125112 is an abundant number, since it is smaller than the sum of its proper divisors (212568).

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

125112 is a wasteful number, since it uses less digits than its factorization.

125112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 419 counting only the distinct ones).

The product of its digits is 20, while the sum is 12.

The square root of 125112 is about 353.7117470484. The cubic root of 125112 is about 50.0149288755.

Adding to 125112 its reverse (211521), we get a palindrome (336633).

The spelling of 125112 in words is "one hundred twenty-five thousand, one hundred twelve".