12113649 has 12 divisors (see below), whose sum is σ = 17610996. Its totient is φ = 8023392.

The previous prime is 12113599. The next prime is 12113657. The reversal of 12113649 is 94631121.

12113649 is a `hidden beast` number, since 1 + 2 + 1 + 13 + 649 = 666.

12113649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3732624 + 8381025 = 1932^2 + 2895^2 .

It is not a de Polignac number, because 12113649 - 2¹¹ = 12111601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12113669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2874 + ... + 5699.

It is an arithmetic number, because the mean of its divisors is an integer number (1467583).

Almost surely, 2^12113649 is an apocalyptic number.

It is an amenable number.

12113649 is a deficient number, since it is larger than the sum of its proper divisors (5497347).

12113649 is a wasteful number, since it uses less digits than its factorization.

12113649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8736 (or 8733 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 12113649 is about 3480.4667790398. The cubic root of 12113649 is about 229.6633322621.

The spelling of 12113649 in words is "twelve million, one hundred thirteen thousand, six hundred forty-nine".