242161323 has 4 divisors (see below), whose sum is σ = 322881768. Its totient is φ = 161440880.

The previous prime is 242161291. The next prime is 242161363. The reversal of 242161323 is 323161242.

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

It is a cyclic number.

It is not a de Polignac number, because 242161323 - 2⁵ = 242161291 is a prime.

It is a super-2 number, since 2×242161323² = 117284212714220658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242161293 and 242161302.

It is not an unprimeable number, because it can be changed into a prime (242161363) 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 3 ways as a sum of consecutive naturals, for example, 40360218 + ... + 40360223.

It is an arithmetic number, because the mean of its divisors is an integer number (80720442).

Almost surely, 2^242161323 is an apocalyptic number.

242161323 is a deficient number, since it is larger than the sum of its proper divisors (80720445).

242161323 is an equidigital number, since it uses as much as digits as its factorization.

242161323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80720444.

The product of its digits is 1728, while the sum is 24.

The square root of 242161323 is about 15561.5334398638. The cubic root of 242161323 is about 623.3064105796.

The spelling of 242161323 in words is "two hundred forty-two million, one hundred sixty-one thousand, three hundred twenty-three".