26043139 has 2 divisors, whose sum is σ = 26043140. Its totient is φ = 26043138.

The previous prime is 26043137. The next prime is 26043151. The reversal of 26043139 is 93134062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26043139 - 2¹ = 26043137 is a prime.

Together with 26043137, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1627057 and since 26043139 and 1627057 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (26043137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13021569 + 13021570.

It is an arithmetic number, because the mean of its divisors is an integer number (13021570).

Almost surely, 2^26043139 is an apocalyptic number.

26043139 is a deficient number, since it is larger than the sum of its proper divisors (1).

26043139 is an equidigital number, since it uses as much as digits as its factorization.

26043139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 26043139 is about 5103.2478873753. The cubic root of 26043139 is about 296.4133613303.

The spelling of 26043139 in words is "twenty-six million, forty-three thousand, one hundred thirty-nine".