125865212 has 24 divisors (see below), whose sum is σ = 254424240. Its totient is φ = 53845760.

The previous prime is 125865209. The next prime is 125865221. The reversal of 125865212 is 212568521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83387 + ... + 84882.

It is an arithmetic number, because the mean of its divisors is an integer number (10601010).

Almost surely, 2^125865212 is an apocalyptic number.

It is an amenable number.

125865212 is an abundant number, since it is smaller than the sum of its proper divisors (128559028).

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

125865212 is a wasteful number, since it uses less digits than its factorization.

125865212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168301 (or 168299 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 125865212 is about 11218.9666190786. The cubic root of 125865212 is about 501.1509645284.

The spelling of 125865212 in words is "one hundred twenty-five million, eight hundred sixty-five thousand, two hundred twelve".