243142144 has 80 divisors (see below), whose sum is σ = 559785600. Its totient is φ = 103348224.

The previous prime is 243142103. The next prime is 243142169. The reversal of 243142144 is 441241342.

It is a zygodrome in base 2.

It is a congruent number.

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, 641347 + ... + 641725.

It is an arithmetic number, because the mean of its divisors is an integer number (6997320).

Almost surely, 2^243142144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243142144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279892800).

243142144 is an abundant number, since it is smaller than the sum of its proper divisors (316643456).

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

243142144 is an equidigital number, since it uses as much as digits as its factorization.

243142144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 567 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 243142144 is about 15593.0158724988. The cubic root of 243142144 is about 624.1467986860.

Adding to 243142144 its reverse (441241342), we get a palindrome (684383486).

The spelling of 243142144 in words is "two hundred forty-three million, one hundred forty-two thousand, one hundred forty-four".