12670565 has 8 divisors (see below), whose sum is σ = 15226488. Its totient is φ = 10121920.

The previous prime is 12670547. The next prime is 12670583. The reversal of 12670565 is 56507621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12670547) and next prime (12670583).

It can be written as a sum of positive squares in 4 ways, for example, as 1387684 + 11282881 = 1178^2 + 3359^2 .

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

It is not a de Polignac number, because 12670565 - 2¹⁸ = 12408421 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3359 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (1903311).

Almost surely, 2^12670565 is an apocalyptic number.

It is an amenable number.

12670565 is a deficient number, since it is larger than the sum of its proper divisors (2555923).

12670565 is an equidigital number, since it uses as much as digits as its factorization.

12670565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 12670565 is about 3559.5737104322. The cubic root of 12670565 is about 233.1302666359.

The spelling of 12670565 in words is "twelve million, six hundred seventy thousand, five hundred sixty-five".