243495 has 24 divisors (see below), whose sum is σ = 482976. Its totient is φ = 111168.

The previous prime is 243487. The next prime is 243517. The reversal of 243495 is 594342.

It is not a de Polignac number, because 243495 - 2³ = 243487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72 + ... + 701.

It is an arithmetic number, because the mean of its divisors is an integer number (20124).

2²⁴³⁴⁹⁵ is an apocalyptic number.

243495 is a deficient number, since it is larger than the sum of its proper divisors (239481).

243495 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (243494) it forms an eRAP, since the sums of their prime factors are consecutive (790 and 791).

243495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 788 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 243495 is about 493.4521253374. The cubic root of 243495 is about 62.4448580308. Note that the first 3 decimals are identical.

The spelling of 243495 in words is "two hundred forty-three thousand, four hundred ninety-five".