26161317 has 48 divisors (see below), whose sum is σ = 49271040. Its totient is φ = 12980736.

The previous prime is 26161307. The next prime is 26161349. The reversal of 26161317 is 71316162.

It is not a de Polignac number, because 26161317 - 2¹¹ = 26159269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26161307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12984 + ... + 14862.

It is an arithmetic number, because the mean of its divisors is an integer number (1026480).

Almost surely, 2^26161317 is an apocalyptic number.

It is an amenable number.

26161317 is a deficient number, since it is larger than the sum of its proper divisors (23109723).

26161317 is a wasteful number, since it uses less digits than its factorization.

26161317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922 (or 1919 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 26161317 is about 5114.8134863355. The cubic root of 26161317 is about 296.8610376000.

Adding to 26161317 its reverse (71316162), we get a palindrome (97477479).

The spelling of 26161317 in words is "twenty-six million, one hundred sixty-one thousand, three hundred seventeen".