26881131 has 8 divisors (see below), whose sum is σ = 37949904. Its totient is φ = 16866560.

The previous prime is 26881121. The next prime is 26881139. The reversal of 26881131 is 13118862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26881131 - 2¹⁹ = 26356843 is a prime.

It is a super-2 number, since 2×26881131² = 1445190407678322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26881139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263490 + ... + 263591.

It is an arithmetic number, because the mean of its divisors is an integer number (4743738).

Almost surely, 2^26881131 is an apocalyptic number.

26881131 is a deficient number, since it is larger than the sum of its proper divisors (11068773).

26881131 is a wasteful number, since it uses less digits than its factorization.

26881131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527101.

The product of its digits is 2304, while the sum is 30.

The square root of 26881131 is about 5184.7016307595. The cubic root of 26881131 is about 299.5590967764.

Adding to 26881131 its reverse (13118862), we get a palindrome (39999993).

The spelling of 26881131 in words is "twenty-six million, eight hundred eighty-one thousand, one hundred thirty-one".