243454045 has 8 divisors (see below), whose sum is σ = 292269024. Its totient is φ = 194680464.

The previous prime is 243454039. The next prime is 243454073. The reversal of 243454045 is 540454342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243454045 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243453998 and 243454016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4542 + ... + 22528.

It is an arithmetic number, because the mean of its divisors is an integer number (36533628).

Almost surely, 2^243454045 is an apocalyptic number.

It is an amenable number.

243454045 is a deficient number, since it is larger than the sum of its proper divisors (48814979).

243454045 is a wasteful number, since it uses less digits than its factorization.

243454045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20699.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 243454045 is about 15603.0139716659. The cubic root of 243454045 is about 624.4135683287.

The spelling of 243454045 in words is "two hundred forty-three million, four hundred fifty-four thousand, forty-five".