243276124 has 48 divisors (see below), whose sum is σ = 536792256. Its totient is φ = 93888000.

The previous prime is 243276101. The next prime is 243276149. The reversal of 243276124 is 421672342.

It is a happy number.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6774 + ... + 23074.

It is an arithmetic number, because the mean of its divisors is an integer number (11183172).

Almost surely, 2^243276124 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 243276124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268396128).

243276124 is an abundant number, since it is smaller than the sum of its proper divisors (293516132).

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

243276124 is a wasteful number, since it uses less digits than its factorization.

243276124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16366 (or 16364 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 243276124 is about 15597.3114349878. The cubic root of 243276124 is about 624.2614200232.

The spelling of 243276124 in words is "two hundred forty-three million, two hundred seventy-six thousand, one hundred twenty-four".