243140146200 has 1440 divisors, whose sum is σ = 1059114355200. Its totient is φ = 51529685760.

The previous prime is 243140146199. The next prime is 243140146259. The reversal of 243140146200 is 2641041342.

It is a happy number.

243140146200 is a `hidden beast` number, since 2 + 4 + 31 + 4 + 0 + 1 + 4 + 620 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 5173194577 + ... + 5173194623.

It is an arithmetic number, because the mean of its divisors is an integer number (735496080).

Almost surely, 2^243140146200 is an apocalyptic number.

243140146200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243140146200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529557177600).

243140146200 is an abundant number, since it is smaller than the sum of its proper divisors (815974209000).

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

243140146200 is an equidigital number, since it uses as much as digits as its factorization.

243140146200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 243140146200 its reverse (2641041342), we get a palindrome (245781187542).

The spelling of 243140146200 in words is "two hundred forty-three billion, one hundred forty million, one hundred forty-six thousand, two hundred".