13247275 has 18 divisors (see below), whose sum is σ = 17395340. Its totient is φ = 9979920.

The previous prime is 13247257. The next prime is 13247281. The reversal of 13247275 is 57274231.

It is not a de Polignac number, because 13247275 - 2⁹ = 13246763 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 79242 + ... + 79408.

Almost surely, 2^13247275 is an apocalyptic number.

13247275 is a deficient number, since it is larger than the sum of its proper divisors (4148065).

13247275 is an equidigital number, since it uses as much as digits as its factorization.

13247275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 191 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 13247275 is about 3639.6806178565. The cubic root of 13247275 is about 236.6149515604.

The spelling of 13247275 in words is "thirteen million, two hundred forty-seven thousand, two hundred seventy-five".