243022005 has 32 divisors (see below), whose sum is σ = 433633920. Its totient is φ = 129133440.

The previous prime is 243021983. The next prime is 243022019. The reversal of 243022005 is 500220342.

It is not a de Polignac number, because 243022005 - 2¹⁷ = 242890933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35025 + ... + 41385.

It is an arithmetic number, because the mean of its divisors is an integer number (13551060).

Almost surely, 2^243022005 is an apocalyptic number.

It is an amenable number.

243022005 is a deficient number, since it is larger than the sum of its proper divisors (190611915).

243022005 is a wasteful number, since it uses less digits than its factorization.

243022005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6658 (or 6652 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 243022005 is about 15589.1630628459. The cubic root of 243022005 is about 624.0439826616.

Adding to 243022005 its reverse (500220342), we get a palindrome (743242347).

The spelling of 243022005 in words is "two hundred forty-three million, twenty-two thousand, five".