125213112 has 48 divisors (see below), whose sum is σ = 342309240. Its totient is φ = 41345088.

The previous prime is 125213087. The next prime is 125213113. The reversal of 125213112 is 211312521.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125213113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423 + ... + 15830.

Almost surely, 2^125213112 is an apocalyptic number.

125213112 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 125213112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171154620).

125213112 is an abundant number, since it is smaller than the sum of its proper divisors (217096128).

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

125213112 is a wasteful number, since it uses less digits than its factorization.

125213112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16372 (or 16365 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 125213112 is about 11189.8664871392. The cubic root of 125213112 is about 500.2839880044.

Adding to 125213112 its reverse (211312521), we get a palindrome (336525633).

The spelling of 125213112 in words is "one hundred twenty-five million, two hundred thirteen thousand, one hundred twelve".