218479054 has 4 divisors (see below), whose sum is σ = 327718584. Its totient is φ = 109239526.

The previous prime is 218479039. The next prime is 218479057. The reversal of 218479054 is 450974812.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 218478998 and 218479016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218479057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54619762 + ... + 54619765.

It is an arithmetic number, because the mean of its divisors is an integer number (81929646).

Almost surely, 2^218479054 is an apocalyptic number.

218479054 is a deficient number, since it is larger than the sum of its proper divisors (109239530).

218479054 is a wasteful number, since it uses less digits than its factorization.

218479054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109239529.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 218479054 is about 14781.0369730950. The cubic root of 218479054 is about 602.2866943473.

The spelling of 218479054 in words is "two hundred eighteen million, four hundred seventy-nine thousand, fifty-four".