26667149 has 2 divisors, whose sum is σ = 26667150. Its totient is φ = 26667148.

The previous prime is 26667133. The next prime is 26667163. The reversal of 26667149 is 94176662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18361225 + 8305924 = 4285^2 + 2882^2 .

It is a cyclic number.

It is not a de Polignac number, because 26667149 - 2⁴ = 26667133 is a prime.

It is a super-2 number, since 2×26667149² = 1422273671576402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26667049) 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 as a sum of consecutive naturals, namely, 13333574 + 13333575.

It is an arithmetic number, because the mean of its divisors is an integer number (13333575).

Almost surely, 2^26667149 is an apocalyptic number.

It is an amenable number.

26667149 is a deficient number, since it is larger than the sum of its proper divisors (1).

26667149 is an equidigital number, since it uses as much as digits as its factorization.

26667149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 26667149 is about 5164.0244964562. The cubic root of 26667149 is about 298.7621177020.

The spelling of 26667149 in words is "twenty-six million, six hundred sixty-seven thousand, one hundred forty-nine".