218080245 has 16 divisors (see below), whose sum is σ = 349132032. Its totient is φ = 116241600.

The previous prime is 218080237. The next prime is 218080249. The reversal of 218080245 is 542080812.

It is not a de Polignac number, because 218080245 - 2³ = 218080237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218080249) 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, 32695 + ... + 38795.

It is an arithmetic number, because the mean of its divisors is an integer number (21820752).

Almost surely, 2^218080245 is an apocalyptic number.

It is an amenable number.

218080245 is a deficient number, since it is larger than the sum of its proper divisors (131051787).

218080245 is a wasteful number, since it uses less digits than its factorization.

218080245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8492.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 218080245 is about 14767.5402488024. The cubic root of 218080245 is about 601.9200022100.

The spelling of 218080245 in words is "two hundred eighteen million, eighty thousand, two hundred forty-five".