26116121 has 4 divisors (see below), whose sum is σ = 26608932. Its totient is φ = 25623312.

The previous prime is 26116081. The next prime is 26116133. The reversal of 26116121 is 12161162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11978521 + 14137600 = 3461^2 + 3760^2 .

It is a cyclic number.

It is not a de Polignac number, because 26116121 - 2²² = 21921817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26116093 and 26116102.

It is not an unprimeable number, because it can be changed into a prime (26116141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246326 + ... + 246431.

It is an arithmetic number, because the mean of its divisors is an integer number (6652233).

Almost surely, 2^26116121 is an apocalyptic number.

It is an amenable number.

26116121 is a deficient number, since it is larger than the sum of its proper divisors (492811).

26116121 is an equidigital number, since it uses as much as digits as its factorization.

26116121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492810.

The product of its digits is 144, while the sum is 20.

The square root of 26116121 is about 5110.3934290816. The cubic root of 26116121 is about 296.6899877864.

Adding to 26116121 its reverse (12161162), we get a palindrome (38277283).

The spelling of 26116121 in words is "twenty-six million, one hundred sixteen thousand, one hundred twenty-one".