243023115 has 8 divisors (see below), whose sum is σ = 388837008. Its totient is φ = 129612320.

The previous prime is 243023101. The next prime is 243023147. The reversal of 243023115 is 511320342.

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

It is not a de Polignac number, because 243023115 - 2⁸ = 243022859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243023091 and 243023100.

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, 8100756 + ... + 8100785.

It is an arithmetic number, because the mean of its divisors is an integer number (48604626).

Almost surely, 2^243023115 is an apocalyptic number.

243023115 is a deficient number, since it is larger than the sum of its proper divisors (145813893).

243023115 is a wasteful number, since it uses less digits than its factorization.

243023115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16201549.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 243023115 is about 15589.1986644600. The cubic root of 243023115 is about 624.0449327646.

Adding to 243023115 its reverse (511320342), we get a palindrome (754343457).

The spelling of 243023115 in words is "two hundred forty-three million, twenty-three thousand, one hundred fifteen".