163045243 has 4 divisors (see below), whose sum is σ = 163332360. Its totient is φ = 162758128.

The previous prime is 163045231. The next prime is 163045271. The reversal of 163045243 is 342540361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163045243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163048243) 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, 142705 + ... + 143842.

It is an arithmetic number, because the mean of its divisors is an integer number (40833090).

Almost surely, 2^163045243 is an apocalyptic number.

163045243 is a deficient number, since it is larger than the sum of its proper divisors (287117).

163045243 is an equidigital number, since it uses as much as digits as its factorization.

163045243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287116.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 163045243 is about 12768.9170644969. The cubic root of 163045243 is about 546.3060928212.

The spelling of 163045243 in words is "one hundred sixty-three million, forty-five thousand, two hundred forty-three".