126859 has 2 divisors, whose sum is σ = 126860. Its totient is φ = 126858.

The previous prime is 126857. The next prime is 126913. The reversal of 126859 is 958621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126859 - 2¹ = 126857 is a prime.

It is a super-3 number, since 3×126859³ = 6124704014573337, which contains 333 as substring.

Together with 126857, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 126859.

It is not a weakly prime, because it can be changed into another prime (126851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63429 + 63430.

It is an arithmetic number, because the mean of its divisors is an integer number (63430).

2¹²⁶⁸⁵⁹ is an apocalyptic number.

126859 is a deficient number, since it is larger than the sum of its proper divisors (1).

126859 is an equidigital number, since it uses as much as digits as its factorization.

126859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 126859 is about 356.1727109142. The cubic root of 126859 is about 50.2466479617.

The spelling of 126859 in words is "one hundred twenty-six thousand, eight hundred fifty-nine".