454040453 has 4 divisors (see below), whose sum is σ = 462607308. Its totient is φ = 445473600.

The previous prime is 454040449. The next prime is 454040513. The reversal of 454040453 is 354040454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354040454 = 2 ⋅177020227.

It can be written as a sum of positive squares in 2 ways, for example, as 401521444 + 52519009 = 20038^2 + 7247^2 .

It is a cyclic number.

It is not a de Polignac number, because 454040453 - 2² = 454040449 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 (454040423) 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, 4283348 + ... + 4283453.

It is an arithmetic number, because the mean of its divisors is an integer number (115651827).

Almost surely, 2^454040453 is an apocalyptic number.

It is an amenable number.

454040453 is a deficient number, since it is larger than the sum of its proper divisors (8566855).

454040453 is an equidigital number, since it uses as much as digits as its factorization.

454040453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8566854.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 454040453 is about 21308.2250081981. The cubic root of 454040453 is about 768.5961111931.

Subtracting from 454040453 its reverse (354040454), we obtain a palindrome (99999999).

The spelling of 454040453 in words is "four hundred fifty-four million, forty thousand, four hundred fifty-three".