454320145 has 4 divisors (see below), whose sum is σ = 545184180. Its totient is φ = 363456112.

The previous prime is 454320143. The next prime is 454320157. The reversal of 454320145 is 541023454.

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 157929489 + 296390656 = 12567^2 + 17216^2 .

It is a cyclic number.

It is not a de Polignac number, because 454320145 - 2¹ = 454320143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (454320143) 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, 45432010 + ... + 45432019.

It is an arithmetic number, because the mean of its divisors is an integer number (136296045).

Almost surely, 2^454320145 is an apocalyptic number.

It is an amenable number.

454320145 is a deficient number, since it is larger than the sum of its proper divisors (90864035).

454320145 is an equidigital number, since it uses as much as digits as its factorization.

454320145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90864034.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 454320145 is about 21314.7870033927. The cubic root of 454320145 is about 768.7538989381.

Adding to 454320145 its reverse (541023454), we get a palindrome (995343599).

The spelling of 454320145 in words is "four hundred fifty-four million, three hundred twenty thousand, one hundred forty-five".