243235232145 has 48 divisors (see below), whose sum is σ = 422724744000. Its totient is φ = 129382121088.

The previous prime is 243235232143. The next prime is 243235232209. The reversal of 243235232145 is 541232532342.

243235232145 is a `hidden beast` number, since 2 + 4 + 323 + 5 + 2 + 321 + 4 + 5 = 666.

It is not a de Polignac number, because 243235232145 - 2¹ = 243235232143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243235232143) 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, 52385194 + ... + 52389836.

It is an arithmetic number, because the mean of its divisors is an integer number (8806765500).

Almost surely, 2^243235232145 is an apocalyptic number.

It is an amenable number.

243235232145 is a deficient number, since it is larger than the sum of its proper divisors (179489511855).

243235232145 is a wasteful number, since it uses less digits than its factorization.

243235232145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7486 (or 7483 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

Adding to 243235232145 its reverse (541232532342), we get a palindrome (784467764487).

The spelling of 243235232145 in words is "two hundred forty-three billion, two hundred thirty-five million, two hundred thirty-two thousand, one hundred forty-five".