12050813 has 4 divisors (see below), whose sum is σ = 12089628. Its totient is φ = 12012000.

The previous prime is 12050803. The next prime is 12050833. The reversal of 12050813 is 31805021.

12050813 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 31805021 = 23 ⋅1382827.

It can be written as a sum of positive squares in 2 ways, for example, as 3541924 + 8508889 = 1882^2 + 2917^2 .

It is a cyclic number.

It is not a de Polignac number, because 12050813 - 2¹⁰ = 12049789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12050803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18938 + ... + 19563.

It is an arithmetic number, because the mean of its divisors is an integer number (3022407).

Almost surely, 2^12050813 is an apocalyptic number.

It is an amenable number.

12050813 is a deficient number, since it is larger than the sum of its proper divisors (38815).

12050813 is an equidigital number, since it uses as much as digits as its factorization.

12050813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38814.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 12050813 is about 3471.4280922986. The cubic root of 12050813 is about 229.2655399395.

Adding to 12050813 its reverse (31805021), we get a palindrome (43855834).

The spelling of 12050813 in words is "twelve million, fifty thousand, eight hundred thirteen".