228143067 has 4 divisors (see below), whose sum is σ = 304190760. Its totient is φ = 152095376.

The previous prime is 228143053. The next prime is 228143081. The reversal of 228143067 is 760341822.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (228143053) and next prime (228143081).

It is a cyclic number.

It is not a de Polignac number, because 228143067 - 2¹² = 228138971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228143567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38023842 + ... + 38023847.

It is an arithmetic number, because the mean of its divisors is an integer number (76047690).

Almost surely, 2^228143067 is an apocalyptic number.

228143067 is a deficient number, since it is larger than the sum of its proper divisors (76047693).

228143067 is an equidigital number, since it uses as much as digits as its factorization.

228143067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76047692.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 228143067 is about 15104.4055493753. The cubic root of 228143067 is about 611.0392273489.

Adding to 228143067 its reverse (760341822), we get a palindrome (988484889).

The spelling of 228143067 in words is "two hundred twenty-eight million, one hundred forty-three thousand, sixty-seven".