243255441 has 32 divisors (see below), whose sum is σ = 382491648. Its totient is φ = 135570240.

The previous prime is 243255437. The next prime is 243255449. The reversal of 243255441 is 144552342.

It is not a de Polignac number, because 243255441 - 2² = 243255437 is a prime.

It is a super-2 number, since 2×243255441² = 118346419152208962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243255399 and 243255408.

It is not an unprimeable number, because it can be changed into a prime (243255449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130780 + ... + 132626.

It is an arithmetic number, because the mean of its divisors is an integer number (11952864).

Almost surely, 2^243255441 is an apocalyptic number.

It is an amenable number.

243255441 is a deficient number, since it is larger than the sum of its proper divisors (139236207).

243255441 is a wasteful number, since it uses less digits than its factorization.

243255441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181.

The product of its digits is 19200, while the sum is 30.

The square root of 243255441 is about 15596.6483899587. The cubic root of 243255441 is about 624.2437282406.

The spelling of 243255441 in words is "two hundred forty-three million, two hundred fifty-five thousand, four hundred forty-one".