26426161 has 4 divisors (see below), whose sum is σ = 26539812. Its totient is φ = 26312512.

The previous prime is 26426107. The next prime is 26426189. The reversal of 26426161 is 16162462.

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 5035536 + 21390625 = 2244^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 26426161 - 2¹¹ = 26424113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26426261) 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, 56476 + ... + 56941.

It is an arithmetic number, because the mean of its divisors is an integer number (6634953).

Almost surely, 2^26426161 is an apocalyptic number.

It is an amenable number.

26426161 is a deficient number, since it is larger than the sum of its proper divisors (113651).

26426161 is a wasteful number, since it uses less digits than its factorization.

26426161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113650.

The product of its digits is 3456, while the sum is 28.

The square root of 26426161 is about 5140.6381899527. The cubic root of 26426161 is about 297.8594332771.

The spelling of 26426161 in words is "twenty-six million, four hundred twenty-six thousand, one hundred sixty-one".