26705131 has 4 divisors (see below), whose sum is σ = 26782000. Its totient is φ = 26628264.

The previous prime is 26705117. The next prime is 26705149. The reversal of 26705131 is 13150762.

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 26705131 - 2⁹ = 26704619 is a prime.

It is a super-2 number, since 2×26705131² = 1426328043454322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26705096 and 26705105.

It is not an unprimeable number, because it can be changed into a prime (26705101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37911 + ... + 38608.

It is an arithmetic number, because the mean of its divisors is an integer number (6695500).

Almost surely, 2^26705131 is an apocalyptic number.

26705131 is a deficient number, since it is larger than the sum of its proper divisors (76869).

26705131 is an equidigital number, since it uses as much as digits as its factorization.

26705131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76868.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 26705131 is about 5167.7007459798. The cubic root of 26705131 is about 298.9038926322.

Adding to 26705131 its reverse (13150762), we get a palindrome (39855893).

The spelling of 26705131 in words is "twenty-six million, seven hundred five thousand, one hundred thirty-one".