230778243 has 12 divisors (see below), whose sum is σ = 333506160. Its totient is φ = 153778416.

The previous prime is 230778241. The next prime is 230778257. The reversal of 230778243 is 342877032.

It is not a de Polignac number, because 230778243 - 2¹ = 230778241 is a prime.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 230778198 and 230778207.

It is not an unprimeable number, because it can be changed into a prime (230778241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19153 + ... + 28781.

It is an arithmetic number, because the mean of its divisors is an integer number (27792180).

Almost surely, 2^230778243 is an apocalyptic number.

230778243 is a deficient number, since it is larger than the sum of its proper divisors (102727917).

230778243 is a wasteful number, since it uses less digits than its factorization.

230778243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12298 (or 12295 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 230778243 is about 15191.3871321878. The cubic root of 230778243 is about 613.3828384020.

The spelling of 230778243 in words is "two hundred thirty million, seven hundred seventy-eight thousand, two hundred forty-three".