125015212 has 96 divisors (see below), whose sum is σ = 291271680. Its totient is φ = 45619200.

The previous prime is 125015207. The next prime is 125015221. The reversal of 125015212 is 212510521.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 125015212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207712 + ... + 208312.

It is an arithmetic number, because the mean of its divisors is an integer number (3034080).

Almost surely, 2^125015212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125015212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145635840).

125015212 is an abundant number, since it is smaller than the sum of its proper divisors (166256468).

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

125015212 is a wasteful number, since it uses less digits than its factorization.

125015212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 125015212 is about 11181.0201681242. The cubic root of 125015212 is about 500.0202818439.

Adding to 125015212 its reverse (212510521), we get a palindrome (337525733).

The spelling of 125015212 in words is "one hundred twenty-five million, fifteen thousand, two hundred twelve".