26390113 has 2 divisors, whose sum is σ = 26390114. Its totient is φ = 26390112.

The previous prime is 26390071. The next prime is 26390153. The reversal of 26390113 is 31109362.

26390113 = 3632² + 3633².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13198689 + 13191424 = 3633^2 + 3632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26390113 is a prime.

It is not a weakly prime, because it can be changed into another prime (26390153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13195056 + 13195057.

It is an arithmetic number, because the mean of its divisors is an integer number (13195057).

Almost surely, 2^26390113 is an apocalyptic number.

26390113 is the 3633-rd centered square number.

It is an amenable number.

26390113 is a deficient number, since it is larger than the sum of its proper divisors (1).

26390113 is an equidigital number, since it uses as much as digits as its factorization.

26390113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 26390113 is about 5137.1308139856. The cubic root of 26390113 is about 297.7239346856.

Adding to 26390113 its reverse (31109362), we get a palindrome (57499475).

The spelling of 26390113 in words is "twenty-six million, three hundred ninety thousand, one hundred thirteen".