12604161 has 16 divisors (see below), whose sum is σ = 18013824. Its totient is φ = 7818624.

The previous prime is 12604159. The next prime is 12604181. The reversal of 12604161 is 16140621.

It is not a de Polignac number, because 12604161 - 2¹ = 12604159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12604181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85 + ... + 5021.

It is an arithmetic number, because the mean of its divisors is an integer number (1125864).

Almost surely, 2^12604161 is an apocalyptic number.

It is an amenable number.

12604161 is a deficient number, since it is larger than the sum of its proper divisors (5409663).

12604161 is a wasteful number, since it uses less digits than its factorization.

12604161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 12604161 is about 3550.2339359541. The cubic root of 12604161 is about 232.7222894284.

Adding to 12604161 its reverse (16140621), we get a palindrome (28744782).

The spelling of 12604161 in words is "twelve million, six hundred four thousand, one hundred sixty-one".