26202161 has 4 divisors (see below), whose sum is σ = 27047424. Its totient is φ = 25356900.

The previous prime is 26202149. The next prime is 26202173. The reversal of 26202161 is 16120262.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (26202149) and next prime (26202173).

It is a cyclic number.

It is not a de Polignac number, because 26202161 - 2¹⁴ = 26185777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26402161) 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, 422585 + ... + 422646.

It is an arithmetic number, because the mean of its divisors is an integer number (6761856).

Almost surely, 2^26202161 is an apocalyptic number.

It is an amenable number.

26202161 is a deficient number, since it is larger than the sum of its proper divisors (845263).

26202161 is an equidigital number, since it uses as much as digits as its factorization.

26202161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845262.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 26202161 is about 5118.8046456180. The cubic root of 26202161 is about 297.0154473557.

The spelling of 26202161 in words is "twenty-six million, two hundred two thousand, one hundred sixty-one".