12308849 has 6 divisors (see below), whose sum is σ = 14318514. Its totient is φ = 10550400.

The previous prime is 12308843. The next prime is 12308861. The reversal of 12308849 is 94880321.

12308849 = 477² + 478² + ... + 525².

It is a happy number.

12308849 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10368400 + 1940449 = 3220^2 + 1393^2 .

It is not a de Polignac number, because 12308849 - 2¹⁶ = 12243313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12308843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125552 + ... + 125649.

It is an arithmetic number, because the mean of its divisors is an integer number (2386419).

Almost surely, 2^12308849 is an apocalyptic number.

It is an amenable number.

12308849 is a deficient number, since it is larger than the sum of its proper divisors (2009665).

12308849 is an equidigital number, since it uses as much as digits as its factorization.

12308849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251215 (or 251208 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 12308849 is about 3508.3969273730. The cubic root of 12308849 is about 230.8903673215.

The spelling of 12308849 in words is "twelve million, three hundred eight thousand, eight hundred forty-nine".