26342161 has 2 divisors, whose sum is σ = 26342162. Its totient is φ = 26342160.

The previous prime is 26342149. The next prime is 26342209. The reversal of 26342161 is 16124362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16451136 + 9891025 = 4056^2 + 3145^2 .

It is a cyclic number.

It is not a de Polignac number, because 26342161 - 2⁹ = 26341649 is a prime.

It is a super-2 number, since 2×26342161² = 1387818892299842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26342461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13171080 + 13171081.

It is an arithmetic number, because the mean of its divisors is an integer number (13171081).

Almost surely, 2^26342161 is an apocalyptic number.

It is an amenable number.

26342161 is a deficient number, since it is larger than the sum of its proper divisors (1).

26342161 is an equidigital number, since it uses as much as digits as its factorization.

26342161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 26342161 is about 5132.4614952282. The cubic root of 26342161 is about 297.5434995123.

It can be divided in two parts, 263 and 42161, that added together give a palindrome (42424).

The spelling of 26342161 in words is "twenty-six million, three hundred forty-two thousand, one hundred sixty-one".