243053163 has 8 divisors (see below), whose sum is σ = 360078800. Its totient is φ = 162035424.

The previous prime is 243053159. The next prime is 243053171. The reversal of 243053163 is 361350342.

It is a happy number.

It is not a de Polignac number, because 243053163 - 2² = 243053159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9001969 = 243053163 / (2 + 4 + 3 + 0 + 5 + 3 + 1 + 6 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243053143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4500958 + ... + 4501011.

It is an arithmetic number, because the mean of its divisors is an integer number (45009850).

Almost surely, 2^243053163 is an apocalyptic number.

243053163 is a deficient number, since it is larger than the sum of its proper divisors (117025637).

243053163 is an equidigital number, since it uses as much as digits as its factorization.

243053163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9001978 (or 9001972 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 243053163 is about 15590.1623788850. The cubic root of 243053163 is about 624.0706512089.

The spelling of 243053163 in words is "two hundred forty-three million, fifty-three thousand, one hundred sixty-three".