12605541 has 36 divisors (see below), whose sum is σ = 19430208. Its totient is φ = 7262112.

The previous prime is 12605539. The next prime is 12605557. The reversal of 12605541 is 14550621.

It is not a de Polignac number, because 12605541 - 2¹ = 12605539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12605591) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 268180 + ... + 268226.

It is an arithmetic number, because the mean of its divisors is an integer number (539728).

Almost surely, 2^12605541 is an apocalyptic number.

It is an amenable number.

12605541 is a deficient number, since it is larger than the sum of its proper divisors (6824667).

12605541 is a wasteful number, since it uses less digits than its factorization.

12605541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 12605541 is about 3550.4282840243. The cubic root of 12605541 is about 232.7307825241.

The spelling of 12605541 in words is "twelve million, six hundred five thousand, five hundred forty-one".