26065121 has 4 divisors (see below), whose sum is σ = 26096532. Its totient is φ = 26033712.

The previous prime is 26065111. The next prime is 26065129. The reversal of 26065121 is 12156062.

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 1661521 + 24403600 = 1289^2 + 4940^2 .

It is a cyclic number.

It is not a de Polignac number, because 26065121 - 2¹⁰ = 26064097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26065129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14426 + ... + 16131.

It is an arithmetic number, because the mean of its divisors is an integer number (6524133).

Almost surely, 2^26065121 is an apocalyptic number.

It is an amenable number.

26065121 is a deficient number, since it is larger than the sum of its proper divisors (31411).

26065121 is an equidigital number, since it uses as much as digits as its factorization.

26065121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31410.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 26065121 is about 5105.4011595564. The cubic root of 26065121 is about 296.4967348711.

The spelling of 26065121 in words is "twenty-six million, sixty-five thousand, one hundred twenty-one".