243125445426 has 16 divisors (see below), whose sum is σ = 486443039328. Its totient is φ = 81009790400.

The previous prime is 243125445419. The next prime is 243125445439. The reversal of 243125445426 is 624544521342.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7989735 + ... + 8020106.

It is an arithmetic number, because the mean of its divisors is an integer number (30402689958).

Almost surely, 2^243125445426 is an apocalyptic number.

243125445426 is an abundant number, since it is smaller than the sum of its proper divisors (243317593902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243125445426 is a wasteful number, since it uses less digits than its factorization.

243125445426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16012377.

The product of its digits is 921600, while the sum is 42.

Adding to 243125445426 its reverse (624544521342), we get a palindrome (867669966768).

It can be divided in two parts, 243125 and 445426, that added together give a triangular number (688551 = T₁₁₇₃).

The spelling of 243125445426 in words is "two hundred forty-three billion, one hundred twenty-five million, four hundred forty-five thousand, four hundred twenty-six".