12346561 has 12 divisors (see below), whose sum is σ = 13606272. Its totient is φ = 11180664.

The previous prime is 12346549. The next prime is 12346589. The reversal of 12346561 is 16564321.

It is not a de Polignac number, because 12346561 - 2¹¹ = 12344513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12346511) 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 11 ways as a sum of consecutive naturals, for example, 7560 + ... + 9046.

It is an arithmetic number, because the mean of its divisors is an integer number (1133856).

Almost surely, 2^12346561 is an apocalyptic number.

It is an amenable number.

12346561 is a deficient number, since it is larger than the sum of its proper divisors (1259711).

12346561 is a wasteful number, since it uses less digits than its factorization.

12346561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548 (or 1529 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 12346561 is about 3513.7673514335. The cubic root of 12346561 is about 231.1259284772.

The spelling of 12346561 in words is "twelve million, three hundred forty-six thousand, five hundred sixty-one".