26131967 has 4 divisors (see below), whose sum is σ = 26197536. Its totient is φ = 26066400.

The previous prime is 26131949. The next prime is 26131981. The reversal of 26131967 is 76913162.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26131967 - 2¹⁶ = 26066431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26131927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32183 + ... + 32984.

It is an arithmetic number, because the mean of its divisors is an integer number (6549384).

Almost surely, 2^26131967 is an apocalyptic number.

26131967 is a deficient number, since it is larger than the sum of its proper divisors (65569).

26131967 is an equidigital number, since it uses as much as digits as its factorization.

26131967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65568.

The product of its digits is 13608, while the sum is 35.

The square root of 26131967 is about 5111.9435638512. The cubic root of 26131967 is about 296.7499813694.

The spelling of 26131967 in words is "twenty-six million, one hundred thirty-one thousand, nine hundred sixty-seven".