26142161 has 2 divisors, whose sum is σ = 26142162. Its totient is φ = 26142160.

The previous prime is 26142143. The next prime is 26142163. The reversal of 26142161 is 16124162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17380561 + 8761600 = 4169^2 + 2960^2 .

It is a cyclic number.

It is not a de Polignac number, because 26142161 - 2¹⁸ = 25880017 is a prime.

Together with 26142163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26142163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13071080 + 13071081.

It is an arithmetic number, because the mean of its divisors is an integer number (13071081).

Almost surely, 2^26142161 is an apocalyptic number.

It is an amenable number.

26142161 is a deficient number, since it is larger than the sum of its proper divisors (1).

26142161 is an equidigital number, since it uses as much as digits as its factorization.

26142161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

The square root of 26142161 is about 5112.9405433664. The cubic root of 26142161 is about 296.7885634381.

The spelling of 26142161 in words is "twenty-six million, one hundred forty-two thousand, one hundred sixty-one".