243225039 has 16 divisors (see below), whose sum is σ = 335175680. Its totient is φ = 156725280.

The previous prime is 243225029. The next prime is 243225043. The reversal of 243225039 is 930522342.

It is not a de Polignac number, because 243225039 - 2⁵ = 243225007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243224997 and 243225015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243225019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144897 + ... + 146565.

It is an arithmetic number, because the mean of its divisors is an integer number (20948480).

Almost surely, 2^243225039 is an apocalyptic number.

243225039 is a deficient number, since it is larger than the sum of its proper divisors (91950641).

243225039 is a wasteful number, since it uses less digits than its factorization.

243225039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 243225039 is about 15595.6737270308. The cubic root of 243225039 is about 624.2177212190.

The spelling of 243225039 in words is "two hundred forty-three million, two hundred twenty-five thousand, thirty-nine".