4113145221 has 4 divisors (see below), whose sum is σ = 5484193632. Its totient is φ = 2742096812.

The previous prime is 4113145199. The next prime is 4113145237. The reversal of 4113145221 is 1225413114.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4113145221 - 2⁹ = 4113144709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4113145191 and 4113145200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4113144221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685524201 + ... + 685524206.

It is an arithmetic number, because the mean of its divisors is an integer number (1371048408).

Almost surely, 2^4113145221 is an apocalyptic number.

It is an amenable number.

4113145221 is a deficient number, since it is larger than the sum of its proper divisors (1371048411).

4113145221 is a wasteful number, since it uses less digits than its factorization.

4113145221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371048410.

The product of its digits is 960, while the sum is 24.

The square root of 4113145221 is about 64133.8071612781. The cubic root of 4113145221 is about 1602.2293429770.

Adding to 4113145221 its reverse (1225413114), we get a palindrome (5338558335).

The spelling of 4113145221 in words is "four billion, one hundred thirteen million, one hundred forty-five thousand, two hundred twenty-one".