26268161 has 4 divisors (see below), whose sum is σ = 26361924. Its totient is φ = 26174400.

The previous prime is 26268149. The next prime is 26268163. The reversal of 26268161 is 16186262.

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 20295025 + 5973136 = 4505^2 + 2444^2 .

It is a cyclic number.

It is not a de Polignac number, because 26268161 - 2⁶ = 26268097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26268163) 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, 46460 + ... + 47021.

It is an arithmetic number, because the mean of its divisors is an integer number (6590481).

Almost surely, 2^26268161 is an apocalyptic number.

It is an amenable number.

26268161 is a deficient number, since it is larger than the sum of its proper divisors (93763).

26268161 is an equidigital number, since it uses as much as digits as its factorization.

26268161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93762.

The product of its digits is 6912, while the sum is 32.

The square root of 26268161 is about 5125.2474086623. The cubic root of 26268161 is about 297.2646199758.

The spelling of 26268161 in words is "twenty-six million, two hundred sixty-eight thousand, one hundred sixty-one".