243054 has 32 divisors (see below), whose sum is σ = 618240. Its totient is φ = 69336.

The previous prime is 243031. The next prime is 243073. The reversal of 243054 is 450342.

243054 = 245² + 246² + ... + 248².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243054.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57 + ... + 699.

It is an arithmetic number, because the mean of its divisors is an integer number (19320).

2²⁴³⁰⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309120).

243054 is an abundant number, since it is smaller than the sum of its proper divisors (375186).

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

243054 is a wasteful number, since it uses less digits than its factorization.

243054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 243054 is about 493.0050709678. The cubic root of 243054 is about 62.4071367577.

Adding to 243054 its reverse (450342), we get a palindrome (693396).

The spelling of 243054 in words is "two hundred forty-three thousand, fifty-four".