12119845 has 4 divisors (see below), whose sum is σ = 14543820. Its totient is φ = 9695872.

The previous prime is 12119837. The next prime is 12119869. The reversal of 12119845 is 54891121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54891121 = 4919 ⋅11159.

It can be written as a sum of positive squares in 2 ways, for example, as 7306209 + 4813636 = 2703^2 + 2194^2 .

It is a cyclic number.

It is not a de Polignac number, because 12119845 - 2³ = 12119837 is a prime.

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, 1211980 + ... + 1211989.

It is an arithmetic number, because the mean of its divisors is an integer number (3635955).

Almost surely, 2^12119845 is an apocalyptic number.

It is an amenable number.

12119845 is a deficient number, since it is larger than the sum of its proper divisors (2423975).

12119845 is an equidigital number, since it uses as much as digits as its factorization.

12119845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423974.

The product of its digits is 2880, while the sum is 31.

The square root of 12119845 is about 3481.3567757413. The cubic root of 12119845 is about 229.7024823553.

The spelling of 12119845 in words is "twelve million, one hundred nineteen thousand, eight hundred forty-five".