126791 has 8 divisors (see below), whose sum is σ = 147840. Its totient is φ = 106488.

The previous prime is 126781. The next prime is 126823. The reversal of 126791 is 197621.

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-126791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260 + ... + 566.

It is an arithmetic number, because the mean of its divisors is an integer number (18480).

2¹²⁶⁷⁹¹ is an apocalyptic number.

126791 is a deficient number, since it is larger than the sum of its proper divisors (21049).

126791 is an equidigital number, since it uses as much as digits as its factorization.

126791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373.

The product of its digits is 756, while the sum is 26.

The square root of 126791 is about 356.0772388120. The cubic root of 126791 is about 50.2376684838.

The spelling of 126791 in words is "one hundred twenty-six thousand, seven hundred ninety-one".