126812 has 18 divisors (see below), whose sum is σ = 258552. Its totient is φ = 54264.

The previous prime is 126781. The next prime is 126823. The reversal of 126812 is 218621.

It is a congruent number.

It is an unprimeable number.

126812 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 5 ways as a sum of consecutive naturals, for example, 128 + ... + 519.

It is an arithmetic number, because the mean of its divisors is an integer number (14364).

2¹²⁶⁸¹² is an apocalyptic number.

It is an amenable number.

126812 is an abundant number, since it is smaller than the sum of its proper divisors (131740).

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

126812 is a wasteful number, since it uses less digits than its factorization.

126812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 656 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 126812 is about 356.1067255754. The cubic root of 126812 is about 50.2404419005.

Subtracting 126812 from its reverse (218621), we obtain a square (91809 = 303²).

The spelling of 126812 in words is "one hundred twenty-six thousand, eight hundred twelve".