243225603 has 6 divisors (see below), whose sum is σ = 351325884. Its totient is φ = 162150396.

The previous prime is 243225601. The next prime is 243225617. The reversal of 243225603 is 306522342.

243225603 is a `hidden beast` number, since 2 + 4 + 32 + 25 + 603 = 666.

It is not a de Polignac number, because 243225603 - 2¹ = 243225601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243225601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13512525 + ... + 13512542.

It is an arithmetic number, because the mean of its divisors is an integer number (58554314).

Almost surely, 2^243225603 is an apocalyptic number.

243225603 is a deficient number, since it is larger than the sum of its proper divisors (108100281).

243225603 is a wasteful number, since it uses less digits than its factorization.

243225603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27025073 (or 27025070 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 243225603 is about 15595.6918089580. The cubic root of 243225603 is about 624.2182037057.

Adding to 243225603 its reverse (306522342), we get a palindrome (549747945).

The spelling of 243225603 in words is "two hundred forty-three million, two hundred twenty-five thousand, six hundred three".