12288319 has 4 divisors (see below), whose sum is σ = 12426480. Its totient is φ = 12150160.

The previous prime is 12288313. The next prime is 12288323. The reversal of 12288319 is 91388221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91388221 = 41 ⋅2228981.

It is a cyclic number.

It is not a de Polignac number, because 12288319 - 2¹¹ = 12286271 is a prime.

It is a super-3 number, since 3×12288319³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12288313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68947 + ... + 69124.

It is an arithmetic number, because the mean of its divisors is an integer number (3106620).

Almost surely, 2^12288319 is an apocalyptic number.

12288319 is a deficient number, since it is larger than the sum of its proper divisors (138161).

12288319 is an equidigital number, since it uses as much as digits as its factorization.

12288319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138160.

The product of its digits is 6912, while the sum is 34.

The square root of 12288319 is about 3505.4698686481. The cubic root of 12288319 is about 230.7619280965.

The spelling of 12288319 in words is "twelve million, two hundred eighty-eight thousand, three hundred nineteen".