2153204454245 has 32 divisors (see below), whose sum is σ = 2813071615200. Its totient is φ = 1572699193344.

The previous prime is 2153204454227. The next prime is 2153204454329. The reversal of 2153204454245 is 5424544023512.

It can be written as a sum of positive squares in 16 ways, for example, as 1268058418561 + 885146035684 = 1126081^2 + 940822^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153204454245 - 2²⁰ = 2153203405669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3764309 + ... + 4298421.

It is an arithmetic number, because the mean of its divisors is an integer number (87908487975).

Almost surely, 2^{2153204454245} is an apocalyptic number.

It is an amenable number.

2153204454245 is a deficient number, since it is larger than the sum of its proper divisors (659867160955).

2153204454245 is a wasteful number, since it uses less digits than its factorization.

2153204454245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534809.

The product of its (nonzero) digits is 768000, while the sum is 41.

Adding to 2153204454245 its reverse (5424544023512), we get a palindrome (7577748477757).

The spelling of 2153204454245 in words is "two trillion, one hundred fifty-three billion, two hundred four million, four hundred fifty-four thousand, two hundred forty-five".