243020995 has 16 divisors (see below), whose sum is σ = 342295488. Its totient is φ = 162138240.

The previous prime is 243020927. The next prime is 243021007. The reversal of 243020995 is 599020342.

It is not a de Polignac number, because 243020995 - 2⁷ = 243020867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243020995.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92536 + ... + 95125.

It is an arithmetic number, because the mean of its divisors is an integer number (21393468).

Almost surely, 2^243020995 is an apocalyptic number.

243020995 is a deficient number, since it is larger than the sum of its proper divisors (99274493).

243020995 is a wasteful number, since it uses less digits than its factorization.

243020995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187710.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 243020995 is about 15589.1306685139. The cubic root of 243020995 is about 624.0431181510.

The spelling of 243020995 in words is "two hundred forty-three million, twenty thousand, nine hundred ninety-five".