12346945 has 24 divisors (see below), whose sum is σ = 16499448. Its totient is φ = 8816640.

The previous prime is 12346931. The next prime is 12346967. The reversal of 12346945 is 54964321.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 12341169 + 5776 = 3513^2 + 76^2 .

It is not a de Polignac number, because 12346945 - 2¹¹ = 12344897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12346945.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 109209 + ... + 109321.

It is an arithmetic number, because the mean of its divisors is an integer number (687477).

Almost surely, 2^12346945 is an apocalyptic number.

It is an amenable number.

12346945 is a deficient number, since it is larger than the sum of its proper divisors (4152503).

12346945 is a wasteful number, since it uses less digits than its factorization.

12346945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 172 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 12346945 is about 3513.8219932148. The cubic root of 12346945 is about 231.1283245948.

The spelling of 12346945 in words is "twelve million, three hundred forty-six thousand, nine hundred forty-five".