26001121 has 4 divisors (see below), whose sum is σ = 26703892. Its totient is φ = 25298352.

The previous prime is 26001103. The next prime is 26001133. The reversal of 26001121 is 12110062.

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 12780625 + 13220496 = 3575^2 + 3636^2 .

It is a cyclic number.

It is not a de Polignac number, because 26001121 - 2⁵ = 26001089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26001221) 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, 351330 + ... + 351403.

It is an arithmetic number, because the mean of its divisors is an integer number (6675973).

Almost surely, 2^26001121 is an apocalyptic number.

It is an amenable number.

26001121 is a deficient number, since it is larger than the sum of its proper divisors (702771).

26001121 is an equidigital number, since it uses as much as digits as its factorization.

26001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702770.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 26001121 is about 5099.1294355017. The cubic root of 26001121 is about 296.2538644181.

Adding to 26001121 its reverse (12110062), we get a palindrome (38111183).

It can be divided in two parts, 2600 and 1121, that added together give a square (3721 = 61²).

The spelling of 26001121 in words is "twenty-six million, one thousand, one hundred twenty-one".