218873541 has 8 divisors (see below), whose sum is σ = 292057920. Its totient is φ = 145802432.

The previous prime is 218873531. The next prime is 218873587. The reversal of 218873541 is 145378812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 218873541 - 2⁹ = 218873029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 218873541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218873531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23700 + ... + 31613.

It is an arithmetic number, because the mean of its divisors is an integer number (36507240).

Almost surely, 2^218873541 is an apocalyptic number.

It is an amenable number.

218873541 is a deficient number, since it is larger than the sum of its proper divisors (73184379).

218873541 is a wasteful number, since it uses less digits than its factorization.

218873541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56635.

The product of its digits is 53760, while the sum is 39.

The square root of 218873541 is about 14794.3753163153. The cubic root of 218873541 is about 602.6489737964.

The spelling of 218873541 in words is "two hundred eighteen million, eight hundred seventy-three thousand, five hundred forty-one".