126805 has 8 divisors (see below), whose sum is σ = 173952. Its totient is φ = 86928.

The previous prime is 126781. The next prime is 126823. The reversal of 126805 is 508621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126805 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1777 + ... + 1846.

It is an arithmetic number, because the mean of its divisors is an integer number (21744).

2¹²⁶⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

126805 is a deficient number, since it is larger than the sum of its proper divisors (47147).

126805 is an equidigital number, since it uses as much as digits as its factorization.

126805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 126805 is about 356.0968969255. The cubic root of 126805 is about 50.2395174623.

The spelling of 126805 in words is "one hundred twenty-six thousand, eight hundred five".