126783 has 6 divisors (see below), whose sum is σ = 183144. Its totient is φ = 84516.

The previous prime is 126781. The next prime is 126823. The reversal of 126783 is 387621.

126783 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 126783 - 2¹ = 126781 is a prime.

126783 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7035 + ... + 7052.

It is an arithmetic number, because the mean of its divisors is an integer number (30524).

2¹²⁶⁷⁸³ is an apocalyptic number.

126783 is a deficient number, since it is larger than the sum of its proper divisors (56361).

126783 is a wasteful number, since it uses less digits than its factorization.

126783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14093 (or 14090 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 126783 is about 356.0660051170. The cubic root of 126783 is about 50.2366118636.

Subtracting from 126783 its sum of digits (27), we obtain a triangular number (126756 = T₅₀₃).

It can be divided in two parts, 126 and 783, that added together give a palindrome (909).

The spelling of 126783 in words is "one hundred twenty-six thousand, seven hundred eighty-three".