26123 has 4 divisors (see below), whose sum is σ = 26448. Its totient is φ = 25800.

The previous prime is 26119. The next prime is 26141. The reversal of 26123 is 32162.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 26123 - 2² = 26119 is a prime.

It is a super-2 number, since 2×26123² = 1364822258, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 26098 and 26107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65 + ... + 237.

It is an arithmetic number, because the mean of its divisors is an integer number (6612).

2²⁶¹²³ is an apocalyptic number.

26123 is a deficient number, since it is larger than the sum of its proper divisors (325).

26123 is a wasteful number, since it uses less digits than its factorization.

With its successor (26124) it forms an eRAP, since the sums of their prime factors are consecutive (324 and 325).

26123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324.

The product of its digits is 72, while the sum is 14.

The square root of 26123 is about 161.6261117518. The cubic root of 26123 is about 29.6716034932.

Adding to 26123 its reverse (32162), we get a palindrome (58285).

It can be divided in two parts, 2 and 6123, that multiplied together give a triangular number (12246 = T₁₅₆).

The spelling of 26123 in words is "twenty-six thousand, one hundred twenty-three".