454013031523 has 4 divisors (see below), whose sum is σ = 454018853008. Its totient is φ = 454007210040.

The previous prime is 454013031497. The next prime is 454013031541. The reversal of 454013031523 is 325130310454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325130310454 = 2 ⋅162565155227.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454013031523 is a prime.

It is a super-2 number, since 2×454013031523² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454013091523) 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, 2792148 + ... + 2950273.

It is an arithmetic number, because the mean of its divisors is an integer number (113504713252).

Almost surely, 2^454013031523 is an apocalyptic number.

454013031523 is a deficient number, since it is larger than the sum of its proper divisors (5821485).

454013031523 is an equidigital number, since it uses as much as digits as its factorization.

454013031523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821484.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 454013031523 its reverse (325130310454), we get a palindrome (779143341977).

The spelling of 454013031523 in words is "four hundred fifty-four billion, thirteen million, thirty-one thousand, five hundred twenty-three".