12088513 has 4 divisors (see below), whose sum is σ = 12799620. Its totient is φ = 11377408.

The previous prime is 12088507. The next prime is 12088537. The reversal of 12088513 is 31588021.

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 8020224 + 4068289 = 2832^2 + 2017^2 .

It is a cyclic number.

It is not a de Polignac number, because 12088513 - 2⁹ = 12088001 is a prime.

It is a super-2 number, since 2×12088513² = 292264293102338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12088213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 355528 + ... + 355561.

It is an arithmetic number, because the mean of its divisors is an integer number (3199905).

Almost surely, 2^12088513 is an apocalyptic number.

It is an amenable number.

12088513 is a deficient number, since it is larger than the sum of its proper divisors (711107).

12088513 is an equidigital number, since it uses as much as digits as its factorization.

12088513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711106.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 12088513 is about 3476.8538939679. The cubic root of 12088513 is about 229.5043706637.

The spelling of 12088513 in words is "twelve million, eighty-eight thousand, five hundred thirteen".