243125445442 has 96 divisors (see below), whose sum is σ = 413269516800. Its totient is φ = 107156206080.

The previous prime is 243125445439. The next prime is 243125445487. The reversal of 243125445442 is 244544521342.

It is a junction number, because it is equal to n+sod(n) for n = 243125445395 and 243125445404.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375773163 + ... + 375773809.

It is an arithmetic number, because the mean of its divisors is an integer number (4304890800).

Almost surely, 2^243125445442 is an apocalyptic number.

243125445442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243125445442 is a deficient number, since it is larger than the sum of its proper divisors (170144071358).

243125445442 is a wasteful number, since it uses less digits than its factorization.

243125445442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1061 counting only the distinct ones).

The product of its digits is 614400, while the sum is 40.

Adding to 243125445442 its reverse (244544521342), we get a palindrome (487669966784).

The spelling of 243125445442 in words is "two hundred forty-three billion, one hundred twenty-five million, four hundred forty-five thousand, four hundred forty-two".