2153726453 has 2 divisors, whose sum is σ = 2153726454. Its totient is φ = 2153726452.

The previous prime is 2153726431. The next prime is 2153726507. The reversal of 2153726453 is 3546273512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1460615524 + 693110929 = 38218^2 + 26327^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153726453 - 2¹² = 2153722357 is a prime.

It is a super-2 number, since 2×2153726453² = 9277075268703922418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2153722453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076863226 + 1076863227.

It is an arithmetic number, because the mean of its divisors is an integer number (1076863227).

Almost surely, 2^2153726453 is an apocalyptic number.

It is an amenable number.

2153726453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153726453 is an equidigital number, since it uses as much as digits as its factorization.

2153726453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 38.

The square root of 2153726453 is about 46408.2584568738. The cubic root of 2153726453 is about 1291.4081238552.

Adding to 2153726453 its reverse (3546273512), we get a palindrome (5699999965).

The spelling of 2153726453 in words is "two billion, one hundred fifty-three million, seven hundred twenty-six thousand, four hundred fifty-three".