12345275 has 6 divisors (see below), whose sum is σ = 15308172. Its totient is φ = 9876200.

The previous prime is 12345259. The next prime is 12345283. The reversal of 12345275 is 57254321.

It is a happy number.

It is not a de Polignac number, because 12345275 - 2⁴ = 12345259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246881 + ... + 246930.

It is an arithmetic number, because the mean of its divisors is an integer number (2551362).

Almost surely, 2^12345275 is an apocalyptic number.

12345275 is a deficient number, since it is larger than the sum of its proper divisors (2962897).

12345275 is an equidigital number, since it uses as much as digits as its factorization.

12345275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493821 (or 493816 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 12345275 is about 3513.5843521965. The cubic root of 12345275 is about 231.1179036174.

Adding to 12345275 its reverse (57254321), we get a palindrome (69599596).

The spelling of 12345275 in words is "twelve million, three hundred forty-five thousand, two hundred seventy-five".