453520243 has 4 divisors (see below), whose sum is σ = 494749368. Its totient is φ = 412291120.

The previous prime is 453520219. The next prime is 453520247. The reversal of 453520243 is 342025354.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 453520243 - 2¹⁷ = 453389171 is a prime.

It is a super-2 number, since 2×453520243² = 411361221621558098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (453520247) 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, 20614546 + ... + 20614567.

It is an arithmetic number, because the mean of its divisors is an integer number (123687342).

Almost surely, 2^453520243 is an apocalyptic number.

453520243 is a deficient number, since it is larger than the sum of its proper divisors (41229125).

453520243 is a wasteful number, since it uses less digits than its factorization.

453520243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41229124.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 453520243 is about 21296.0147210693. The cubic root of 453520243 is about 768.3024632168.

Adding to 453520243 its reverse (342025354), we get a palindrome (795545597).

The spelling of 453520243 in words is "four hundred fifty-three million, five hundred twenty thousand, two hundred forty-three".