243250045 has 8 divisors (see below), whose sum is σ = 292023000. Its totient is φ = 194518080.

The previous prime is 243250039. The next prime is 243250067. The reversal of 243250045 is 540052342.

It can be written as a sum of positive squares in 4 ways, for example, as 700569 + 242549476 = 837^2 + 15574^2 .

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

It is not a de Polignac number, because 243250045 - 2⁵ = 243250013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4831 + ... + 22579.

It is an arithmetic number, because the mean of its divisors is an integer number (36502875).

Almost surely, 2^243250045 is an apocalyptic number.

It is an amenable number.

243250045 is a deficient number, since it is larger than the sum of its proper divisors (48772955).

243250045 is a wasteful number, since it uses less digits than its factorization.

243250045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20495.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 243250045 is about 15596.4754031159. The cubic root of 243250045 is about 624.2391124561.

The spelling of 243250045 in words is "two hundred forty-three million, two hundred fifty thousand, forty-five".