243323545 has 8 divisors (see below), whose sum is σ = 292314240. Its totient is φ = 194441520.

The previous prime is 243323539. The next prime is 243323573. The reversal of 243323545 is 545323342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243323545 - 2⁵ = 243323513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22155 + ... + 31264.

It is an arithmetic number, because the mean of its divisors is an integer number (36539280).

Almost surely, 2^243323545 is an apocalyptic number.

It is an amenable number.

243323545 is a deficient number, since it is larger than the sum of its proper divisors (48990695).

243323545 is an equidigital number, since it uses as much as digits as its factorization.

243323545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54335.

The product of its digits is 43200, while the sum is 31.

The square root of 243323545 is about 15598.8315267523. The cubic root of 243323545 is about 624.3019791172.

Adding to 243323545 its reverse (545323342), we get a palindrome (788646887).

The spelling of 243323545 in words is "two hundred forty-three million, three hundred twenty-three thousand, five hundred forty-five".