243545325 has 48 divisors (see below), whose sum is σ = 426073920. Its totient is φ = 122411520.

The previous prime is 243545317. The next prime is 243545327. The reversal of 243545325 is 523545342.

It is a happy number.

243545325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243545325 - 2³ = 243545317 is a prime.

It is a super-3 number, since 3×243545325³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243545327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 394417 + ... + 395033.

It is an arithmetic number, because the mean of its divisors is an integer number (8876540).

Almost surely, 2^243545325 is an apocalyptic number.

243545325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243545325 is a deficient number, since it is larger than the sum of its proper divisors (182528595).

243545325 is a wasteful number, since it uses less digits than its factorization.

243545325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 921 counting only the distinct ones).

The product of its digits is 72000, while the sum is 33.

The square root of 243545325 is about 15605.9387734285. The cubic root of 243545325 is about 624.4915972214.

The spelling of 243545325 in words is "two hundred forty-three million, five hundred forty-five thousand, three hundred twenty-five".