243155054453 has 8 divisors (see below), whose sum is σ = 244793255616. Its totient is φ = 241521436800.

The previous prime is 243155054419. The next prime is 243155054477. The reversal of 243155054453 is 354450551342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243155054453 - 2¹⁶ = 243154988917 is a prime.

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 243155054453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243155084453) 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 7 ways as a sum of consecutive naturals, for example, 1039388 + ... + 1251653.

It is an arithmetic number, because the mean of its divisors is an integer number (30599156952).

Almost surely, 2^243155054453 is an apocalyptic number.

It is an amenable number.

243155054453 is a deficient number, since it is larger than the sum of its proper divisors (1638201163).

243155054453 is a wasteful number, since it uses less digits than its factorization.

243155054453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291755.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 243155054453 in words is "two hundred forty-three billion, one hundred fifty-five million, fifty-four thousand, four hundred fifty-three".