228144887 has 4 divisors (see below), whose sum is σ = 228260016. Its totient is φ = 228029760.

The previous prime is 228144871. The next prime is 228144893. The reversal of 228144887 is 788441822.

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

It is a cyclic number.

It is not a de Polignac number, because 228144887 - 2⁴ = 228144871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228144817) 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, 54539 + ... + 58572.

It is an arithmetic number, because the mean of its divisors is an integer number (57065004).

Almost surely, 2^228144887 is an apocalyptic number.

228144887 is a deficient number, since it is larger than the sum of its proper divisors (115129).

228144887 is a wasteful number, since it uses less digits than its factorization.

228144887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115128.

The product of its digits is 229376, while the sum is 44.

The square root of 228144887 is about 15104.4657965782. The cubic root of 228144887 is about 611.0408521896.

The spelling of 228144887 in words is "two hundred twenty-eight million, one hundred forty-four thousand, eight hundred eighty-seven".