243125440142 has 8 divisors (see below), whose sum is σ = 392741095656. Its totient is φ = 112211741592.

The previous prime is 243125440127. The next prime is 243125440147. The reversal of 243125440142 is 241044521342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 243125440099 and 243125440108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243125440147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4675489208 + ... + 4675489259.

It is an arithmetic number, because the mean of its divisors is an integer number (49092636957).

Almost surely, 2^243125440142 is an apocalyptic number.

243125440142 is a deficient number, since it is larger than the sum of its proper divisors (149615655514).

243125440142 is a wasteful number, since it uses less digits than its factorization.

243125440142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350978482.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 243125440142 its reverse (241044521342), we get a palindrome (484169961484).

The spelling of 243125440142 in words is "two hundred forty-three billion, one hundred twenty-five million, four hundred forty thousand, one hundred forty-two".