2153455441 has 4 divisors (see below), whose sum is σ = 2174776884. Its totient is φ = 2132134000.

The previous prime is 2153455439. The next prime is 2153455471. The reversal of 2153455441 is 1445543512.

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 1439443600 + 714011841 = 37940^2 + 26721^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153455441 - 2¹ = 2153455439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2153455397 and 2153455406.

It is not an unprimeable number, because it can be changed into a prime (2153455471) 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, 10660570 + ... + 10660771.

It is an arithmetic number, because the mean of its divisors is an integer number (543694221).

Almost surely, 2^2153455441 is an apocalyptic number.

It is an amenable number.

2153455441 is a deficient number, since it is larger than the sum of its proper divisors (21321443).

2153455441 is a wasteful number, since it uses less digits than its factorization.

2153455441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21321442.

The product of its digits is 48000, while the sum is 34.

The square root of 2153455441 is about 46405.3384967721. The cubic root of 2153455441 is about 1291.3539539026.

Adding to 2153455441 its reverse (1445543512), we get a palindrome (3598998953).

The spelling of 2153455441 in words is "two billion, one hundred fifty-three million, four hundred fifty-five thousand, four hundred forty-one".