228144087 has 32 divisors (see below), whose sum is σ = 348549120. Its totient is φ = 147420000.

The previous prime is 228144083. The next prime is 228144089. The reversal of 228144087 is 780441822.

It is not a de Polignac number, because 228144087 - 2² = 228144083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228144083) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 115962 + ... + 117912.

It is an arithmetic number, because the mean of its divisors is an integer number (10892160).

Almost surely, 2^228144087 is an apocalyptic number.

228144087 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

228144087 is a deficient number, since it is larger than the sum of its proper divisors (120405033).

228144087 is a wasteful number, since it uses less digits than its factorization.

228144087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 228144087 is about 15104.4393143208. The cubic root of 228144087 is about 611.0401379750.

The spelling of 228144087 in words is "two hundred twenty-eight million, one hundred forty-four thousand, eighty-seven".