243055262453 has 4 divisors (see below), whose sum is σ = 248983439628. Its totient is φ = 237127085280.

The previous prime is 243055262441. The next prime is 243055262467. The reversal of 243055262453 is 354262550342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354262550342 = 2 ⋅177131275171.

It can be written as a sum of positive squares in 2 ways, for example, as 29110160689 + 213945101764 = 170617^2 + 462542^2 .

It is a cyclic number.

It is not a de Polignac number, because 243055262453 - 2¹⁰ = 243055261429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 5928177133 = 243055262453 / (2 + 4 + 3 + 0 + 5 + 5 + 2 + 6 + 2 + 4 + 5 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243055262453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243055262413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2964088526 + ... + 2964088607.

It is an arithmetic number, because the mean of its divisors is an integer number (62245859907).

Almost surely, 2^243055262453 is an apocalyptic number.

It is an amenable number.

243055262453 is a deficient number, since it is larger than the sum of its proper divisors (5928177175).

243055262453 is an equidigital number, since it uses as much as digits as its factorization.

243055262453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5928177174.

The product of its (nonzero) digits is 864000, while the sum is 41.

The spelling of 243055262453 in words is "two hundred forty-three billion, fifty-five million, two hundred sixty-two thousand, four hundred fifty-three".