163099243 has 2 divisors, whose sum is σ = 163099244. Its totient is φ = 163099242.

The previous prime is 163099231. The next prime is 163099297. The reversal of 163099243 is 342990361.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163099243 is a prime.

It is not a weakly prime, because it can be changed into another prime (163099943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81549621 + 81549622.

It is an arithmetic number, because the mean of its divisors is an integer number (81549622).

Almost surely, 2^163099243 is an apocalyptic number.

163099243 is a deficient number, since it is larger than the sum of its proper divisors (1).

163099243 is an equidigital number, since it uses as much as digits as its factorization.

163099243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 163099243 is about 12771.0313992254. The cubic root of 163099243 is about 546.3663977040.

It can be divided in two parts, 16309 and 9243, that added together give a palindrome (25552).

The spelling of 163099243 in words is "one hundred sixty-three million, ninety-nine thousand, two hundred forty-three".