13261427 has 4 divisors (see below), whose sum is σ = 13276896. Its totient is φ = 13245960.

The previous prime is 13261421. The next prime is 13261433. The reversal of 13261427 is 72416231.

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

It is an interprime number because it is at equal distance from previous prime (13261421) and next prime (13261433).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13261427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13261396 and 13261405.

It is not an unprimeable number, because it can be changed into a prime (13261421) 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 3 ways as a sum of consecutive naturals, for example, 6368 + ... + 8189.

It is an arithmetic number, because the mean of its divisors is an integer number (3319224).

Almost surely, 2^13261427 is an apocalyptic number.

13261427 is a deficient number, since it is larger than the sum of its proper divisors (15469).

13261427 is an equidigital number, since it uses as much as digits as its factorization.

13261427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15468.

The product of its digits is 2016, while the sum is 26.

The square root of 13261427 is about 3641.6242255345. The cubic root of 13261427 is about 236.6991797779.

Adding to 13261427 its reverse (72416231), we get a palindrome (85677658).

The spelling of 13261427 in words is "thirteen million, two hundred sixty-one thousand, four hundred twenty-seven".