2153236453 has 4 divisors (see below), whose sum is σ = 2154363948. Its totient is φ = 2152108960.

The previous prime is 2153236429. The next prime is 2153236469. The reversal of 2153236453 is 3546323512.

2153236453 is digitally balanced in base 2, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 1335390849 + 817845604 = 36543^2 + 28598^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153236453 - 2⁹ = 2153235941 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 (2153236153) 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, 560878 + ... + 564703.

It is an arithmetic number, because the mean of its divisors is an integer number (538590987).

Almost surely, 2^2153236453 is an apocalyptic number.

It is an amenable number.

2153236453 is a deficient number, since it is larger than the sum of its proper divisors (1127495).

2153236453 is a wasteful number, since it uses less digits than its factorization.

2153236453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127494.

The product of its digits is 64800, while the sum is 34.

The square root of 2153236453 is about 46402.9789237717. The cubic root of 2153236453 is about 1291.3101792013.

Adding to 2153236453 its reverse (3546323512), we get a palindrome (5699559965).

The spelling of 2153236453 in words is "two billion, one hundred fifty-three million, two hundred thirty-six thousand, four hundred fifty-three".