126855 has 12 divisors (see below), whose sum is σ = 219960. Its totient is φ = 67632.

The previous prime is 126851. The next prime is 126857. The reversal of 126855 is 558621.

It is not a de Polignac number, because 126855 - 2² = 126851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126851) 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, 1365 + ... + 1454.

It is an arithmetic number, because the mean of its divisors is an integer number (18330).

2¹²⁶⁸⁵⁵ is an apocalyptic number.

126855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126855 is a deficient number, since it is larger than the sum of its proper divisors (93105).

126855 is a wasteful number, since it uses less digits than its factorization.

126855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830 (or 2827 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 126855 is about 356.1670956167. The cubic root of 126855 is about 50.2461198459.

The spelling of 126855 in words is "one hundred twenty-six thousand, eight hundred fifty-five".