12113965 has 4 divisors (see below), whose sum is σ = 14536764. Its totient is φ = 9691168.

The previous prime is 12113957. The next prime is 12113993. The reversal of 12113965 is 56931121.

12113965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8538084 + 3575881 = 2922^2 + 1891^2 .

It is a cyclic number.

It is not a de Polignac number, because 12113965 - 2³ = 12113957 is a prime.

It is a super-3 number, since 3×12113965³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1211392 + ... + 1211401.

It is an arithmetic number, because the mean of its divisors is an integer number (3634191).

Almost surely, 2^12113965 is an apocalyptic number.

It is an amenable number.

12113965 is a deficient number, since it is larger than the sum of its proper divisors (2422799).

12113965 is an equidigital number, since it uses as much as digits as its factorization.

12113965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422798.

The product of its digits is 1620, while the sum is 28.

The square root of 12113965 is about 3480.5121749536. The cubic root of 12113965 is about 229.6653292651.

The spelling of 12113965 in words is "twelve million, one hundred thirteen thousand, nine hundred sixty-five".