243152323 has 4 divisors (see below), whose sum is σ = 244495888. Its totient is φ = 241808760.

The previous prime is 243152317. The next prime is 243152333. The reversal of 243152323 is 323251342.

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

It is a de Polignac number, because none of the positive numbers 2^k-243152323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243152303) 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, 671511 + ... + 671872.

It is an arithmetic number, because the mean of its divisors is an integer number (61123972).

Almost surely, 2^243152323 is an apocalyptic number.

243152323 is a deficient number, since it is larger than the sum of its proper divisors (1343565).

243152323 is a wasteful number, since it uses less digits than its factorization.

243152323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343564.

The product of its digits is 4320, while the sum is 25.

The square root of 243152323 is about 15593.3422652105. The cubic root of 243152323 is about 624.1555084083.

The spelling of 243152323 in words is "two hundred forty-three million, one hundred fifty-two thousand, three hundred twenty-three".