228161206 has 32 divisors (see below), whose sum is σ = 423859968. Its totient is φ = 89696160.

The previous prime is 228161191. The next prime is 228161221. The reversal of 228161206 is 602161822.

It is an interprime number because it is at equal distance from previous prime (228161191) and next prime (228161221).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25821 + ... + 33511.

It is an arithmetic number, because the mean of its divisors is an integer number (13245624).

Almost surely, 2^228161206 is an apocalyptic number.

228161206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

228161206 is a deficient number, since it is larger than the sum of its proper divisors (195698762).

228161206 is a wasteful number, since it uses less digits than its factorization.

228161206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7876.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 228161206 is about 15105.0059913924. The cubic root of 228161206 is about 611.0554209111.

The spelling of 228161206 in words is "two hundred twenty-eight million, one hundred sixty-one thousand, two hundred six".