243022054 has 32 divisors (see below), whose sum is σ = 410489856. Its totient is φ = 106955520.

The previous prime is 243022049. The next prime is 243022057. The reversal of 243022054 is 450220342.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243022057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99087 + ... + 101509.

It is an arithmetic number, because the mean of its divisors is an integer number (12827808).

Almost surely, 2^243022054 is an apocalyptic number.

243022054 is a deficient number, since it is larger than the sum of its proper divisors (167467802).

243022054 is a wasteful number, since it uses less digits than its factorization.

243022054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 243022054 is about 15589.1646344504. The cubic root of 243022054 is about 624.0440246032.

Adding to 243022054 its reverse (450220342), we get a palindrome (693242396).

The spelling of 243022054 in words is "two hundred forty-three million, twenty-two thousand, fifty-four".