243030413 has 4 divisors (see below), whose sum is σ = 243267168. Its totient is φ = 242793660.

The previous prime is 243030409. The next prime is 243030439. The reversal of 243030413 is 314030342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243030413 - 2² = 243030409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243030013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116831 + ... + 118892.

It is an arithmetic number, because the mean of its divisors is an integer number (60816792).

Almost surely, 2^243030413 is an apocalyptic number.

It is an amenable number.

243030413 is a deficient number, since it is larger than the sum of its proper divisors (236755).

243030413 is a wasteful number, since it uses less digits than its factorization.

243030413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236754.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 243030413 is about 15589.4327350292. The cubic root of 243030413 is about 624.0511794054.

Adding to 243030413 its reverse (314030342), we get a palindrome (557060755).

The spelling of 243030413 in words is "two hundred forty-three million, thirty thousand, four hundred thirteen".