125812 has 12 divisors (see below), whose sum is σ = 223776. Its totient is φ = 61880.

The previous prime is 125803. The next prime is 125813. The reversal of 125812 is 218521.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 125812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63 + ... + 505.

It is an arithmetic number, because the mean of its divisors is an integer number (18648).

2¹²⁵⁸¹² is an apocalyptic number.

It is an amenable number.

125812 is a deficient number, since it is larger than the sum of its proper divisors (97964).

125812 is a wasteful number, since it uses less digits than its factorization.

125812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 516 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 125812 is about 354.6998731322. The cubic root of 125812 is about 50.1080330756.

The spelling of 125812 in words is "one hundred twenty-five thousand, eight hundred twelve".