26315109 has 6 divisors (see below), whose sum is σ = 38010726. Its totient is φ = 17543400.

The previous prime is 26315089. The next prime is 26315117. The reversal of 26315109 is 90151362.

It can be written as a sum of positive squares in only one way, i.e., 15444900 + 10870209 = 3930^2 + 3297^2 .

It is not a de Polignac number, because 26315109 - 2⁹ = 26314597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26315129) 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 in 5 ways as a sum of consecutive naturals, for example, 1461942 + ... + 1461959.

It is an arithmetic number, because the mean of its divisors is an integer number (6335121).

Almost surely, 2^26315109 is an apocalyptic number.

It is an amenable number.

26315109 is a deficient number, since it is larger than the sum of its proper divisors (11695617).

26315109 is a wasteful number, since it uses less digits than its factorization.

26315109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923907 (or 2923904 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 26315109 is about 5129.8254356264. The cubic root of 26315109 is about 297.4416108369.

The spelling of 26315109 in words is "twenty-six million, three hundred fifteen thousand, one hundred nine".