243624545 has 16 divisors (see below), whose sum is σ = 300933120. Its totient is φ = 189259200.

The previous prime is 243624523. The next prime is 243624551. The reversal of 243624545 is 545426342.

It is not a de Polignac number, because 243624545 - 2¹⁴ = 243608161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19040 + ... + 29150.

It is an arithmetic number, because the mean of its divisors is an integer number (18808320).

Almost surely, 2^243624545 is an apocalyptic number.

It is an amenable number.

243624545 is a deficient number, since it is larger than the sum of its proper divisors (57308575).

243624545 is a wasteful number, since it uses less digits than its factorization.

243624545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10256.

The product of its digits is 115200, while the sum is 35.

The square root of 243624545 is about 15608.4767033814. The cubic root of 243624545 is about 624.5593010615.

The spelling of 243624545 in words is "two hundred forty-three million, six hundred twenty-four thousand, five hundred forty-five".