2201445541 has 4 divisors (see below), whose sum is σ = 2201540800. Its totient is φ = 2201350284.

The previous prime is 2201445539. The next prime is 2201445551. The reversal of 2201445541 is 1455441022.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2201445541 - 2¹ = 2201445539 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 (2201445551) 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, 11530 + ... + 67348.

It is an arithmetic number, because the mean of its divisors is an integer number (550385200).

Almost surely, 2^2201445541 is an apocalyptic number.

It is an amenable number.

2201445541 is a deficient number, since it is larger than the sum of its proper divisors (95259).

2201445541 is an equidigital number, since it uses as much as digits as its factorization.

2201445541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95258.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 2201445541 is about 46919.5645866413. The cubic root of 2201445541 is about 1300.8762417965.

Adding to 2201445541 its reverse (1455441022), we get a palindrome (3656886563).

The spelling of 2201445541 in words is "two billion, two hundred one million, four hundred forty-five thousand, five hundred forty-one".