12145316 has 12 divisors (see below), whose sum is σ = 21987420. Its totient is φ = 5863200.

The previous prime is 12145303. The next prime is 12145319. The reversal of 12145316 is 61354121.

It can be written as a sum of positive squares in 2 ways, for example, as 8145316 + 4000000 = 2854^2 + 2000^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12145291 and 12145300.

It is not an unprimeable number, because it can be changed into a prime (12145319) 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, 52235 + ... + 52466.

It is an arithmetic number, because the mean of its divisors is an integer number (1832285).

Almost surely, 2^12145316 is an apocalyptic number.

It is an amenable number.

12145316 is a deficient number, since it is larger than the sum of its proper divisors (9842104).

12145316 is a wasteful number, since it uses less digits than its factorization.

12145316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104734 (or 104732 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 12145316 is about 3485.0130559296. The cubic root of 12145316 is about 229.8632835886.

Adding to 12145316 its reverse (61354121), we get a palindrome (73499437).

The spelling of 12145316 in words is "twelve million, one hundred forty-five thousand, three hundred sixteen".