2201504545 has 8 divisors (see below), whose sum is σ = 2642795496. Its totient is φ = 1760543616.

The previous prime is 2201504537. The next prime is 2201504549. The reversal of 2201504545 is 5454051022.

It can be written as a sum of positive squares in 4 ways, for example, as 890485281 + 1311019264 = 29841^2 + 36208^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2201504545 - 2³ = 2201504537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201504549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67582 + ... + 94711.

It is an arithmetic number, because the mean of its divisors is an integer number (330349437).

Almost surely, 2^2201504545 is an apocalyptic number.

It is an amenable number.

2201504545 is a deficient number, since it is larger than the sum of its proper divisors (441290951).

2201504545 is a wasteful number, since it uses less digits than its factorization.

2201504545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165011.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 2201504545 is about 46920.1933606416. The cubic root of 2201504545 is about 1300.8878638898.

Adding to 2201504545 its reverse (5454051022), we get a palindrome (7655555567).

The spelling of 2201504545 in words is "two billion, two hundred one million, five hundred four thousand, five hundred forty-five".