243249003 has 6 divisors (see below), whose sum is σ = 351359684. Its totient is φ = 162165996.

The previous prime is 243248969. The next prime is 243249037. The reversal of 243249003 is 300942342.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (243248969) and next prime (243249037).

It is not a de Polignac number, because 243249003 - 2¹⁶ = 243183467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243249203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13513825 + ... + 13513842.

Almost surely, 2^243249003 is an apocalyptic number.

243249003 is a deficient number, since it is larger than the sum of its proper divisors (108110681).

243249003 is a wasteful number, since it uses less digits than its factorization.

243249003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27027673 (or 27027670 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 243249003 is about 15596.4419980969. The cubic root of 243249003 is about 624.2382211126.

The spelling of 243249003 in words is "two hundred forty-three million, two hundred forty-nine thousand, three".