26000129 has 4 divisors (see below), whose sum is σ = 26366400. Its totient is φ = 25633860.

The previous prime is 26000111. The next prime is 26000131. The reversal of 26000129 is 92100062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26000129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26000129.

It is not an unprimeable number, because it can be changed into a prime (26006129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183029 + ... + 183170.

It is an arithmetic number, because the mean of its divisors is an integer number (6591600).

Almost surely, 2^26000129 is an apocalyptic number.

It is an amenable number.

26000129 is a deficient number, since it is larger than the sum of its proper divisors (366271).

26000129 is an equidigital number, since it uses as much as digits as its factorization.

26000129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366270.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 26000129 is about 5099.0321630678. The cubic root of 26000129 is about 296.2500967912.

The spelling of 26000129 in words is "twenty-six million, one hundred twenty-nine", and thus it is an aban number.