12365081 has 4 divisors (see below), whose sum is σ = 12380964. Its totient is φ = 12349200.

The previous prime is 12365071. The next prime is 12365083. The reversal of 12365081 is 18056321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6528025 + 5837056 = 2555^2 + 2416^2 .

It is a cyclic number.

It is not a de Polignac number, because 12365081 - 2¹⁰ = 12364057 is a prime.

It is a super-2 number, since 2×12365081² = 305790456273122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12365081.

It is not an unprimeable number, because it can be changed into a prime (12365083) 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, 6710 + ... + 8351.

It is an arithmetic number, because the mean of its divisors is an integer number (3095241).

Almost surely, 2^12365081 is an apocalyptic number.

It is an amenable number.

12365081 is a deficient number, since it is larger than the sum of its proper divisors (15883).

12365081 is an equidigital number, since it uses as much as digits as its factorization.

12365081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15882.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12365081 is about 3516.4017119777. The cubic root of 12365081 is about 231.2414346961.

The spelling of 12365081 in words is "twelve million, three hundred sixty-five thousand, eighty-one".