243402113 has 8 divisors (see below), whose sum is σ = 246115968. Its totient is φ = 240698304.

The previous prime is 243402101. The next prime is 243402121. The reversal of 243402113 is 311204342.

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

It is a cyclic number.

It is not a de Polignac number, because 243402113 - 2⁴ = 243402097 is a prime.

It is a super-2 number, since 2×243402113² = 118489177225729538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243432113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52820 + ... + 57242.

It is an arithmetic number, because the mean of its divisors is an integer number (30764496).

Almost surely, 2^243402113 is an apocalyptic number.

It is an amenable number.

243402113 is a deficient number, since it is larger than the sum of its proper divisors (2713855).

243402113 is a wasteful number, since it uses less digits than its factorization.

243402113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 243402113 is about 15601.3497172520. The cubic root of 243402113 is about 624.3691665863.

Adding to 243402113 its reverse (311204342), we get a palindrome (554606455).

The spelling of 243402113 in words is "two hundred forty-three million, four hundred two thousand, one hundred thirteen".