228181205 has 8 divisors (see below), whose sum is σ = 312934272. Its totient is φ = 156467088.

The previous prime is 228181189. The next prime is 228181231. The reversal of 228181205 is 502181822.

It is a happy number.

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 228181205 - 2⁴ = 228181189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3259697 + ... + 3259766.

It is an arithmetic number, because the mean of its divisors is an integer number (39116784).

Almost surely, 2^228181205 is an apocalyptic number.

It is an amenable number.

228181205 is a deficient number, since it is larger than the sum of its proper divisors (84753067).

228181205 is an equidigital number, since it uses as much as digits as its factorization.

228181205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6519475.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 228181205 is about 15105.6679759619. The cubic root of 228181205 is about 611.0732739904.

The spelling of 228181205 in words is "two hundred twenty-eight million, one hundred eighty-one thousand, two hundred five".