243476545 has 16 divisors (see below), whose sum is σ = 331208640. Its totient is φ = 170334144.

The previous prime is 243476543. The next prime is 243476549. The reversal of 243476545 is 545674342.

It is a cyclic number.

It is not a de Polignac number, because 243476545 - 2¹ = 243476543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243476498 and 243476507.

It is not an unprimeable number, because it can be changed into a prime (243476543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97339 + ... + 99808.

It is an arithmetic number, because the mean of its divisors is an integer number (20700540).

Almost surely, 2^243476545 is an apocalyptic number.

It is an amenable number.

243476545 is a deficient number, since it is larger than the sum of its proper divisors (87732095).

243476545 is a wasteful number, since it uses less digits than its factorization.

243476545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197184.

The product of its digits is 403200, while the sum is 40.

The square root of 243476545 is about 15603.7349695514. The cubic root of 243476545 is about 624.4328038173.

The spelling of 243476545 in words is "two hundred forty-three million, four hundred seventy-six thousand, five hundred forty-five".