26181297 has 12 divisors (see below), whose sum is σ = 39808080. Its totient is φ = 16535448.

The previous prime is 26181293. The next prime is 26181307. The reversal of 26181297 is 79218162.

It is not a de Polignac number, because 26181297 - 2² = 26181293 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (26181293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76383 + ... + 76724.

It is an arithmetic number, because the mean of its divisors is an integer number (3317340).

Almost surely, 2^26181297 is an apocalyptic number.

It is an amenable number.

26181297 is a deficient number, since it is larger than the sum of its proper divisors (13626783).

26181297 is a wasteful number, since it uses less digits than its factorization.

26181297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153132 (or 153129 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 26181297 is about 5116.7662639601. The cubic root of 26181297 is about 296.9365915718.

The spelling of 26181297 in words is "twenty-six million, one hundred eighty-one thousand, two hundred ninety-seven".