228144657 has 8 divisors (see below), whose sum is σ = 327592384. Its totient is φ = 140396688.

The previous prime is 228144617. The next prime is 228144667. The reversal of 228144657 is 756441822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228144657 - 2⁷ = 228144529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 5849863 = 228144657 / (2 + 2 + 8 + 1 + 4 + 4 + 6 + 5 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228144617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2924893 + ... + 2924970.

It is an arithmetic number, because the mean of its divisors is an integer number (40949048).

Almost surely, 2^228144657 is an apocalyptic number.

It is an amenable number.

228144657 is a deficient number, since it is larger than the sum of its proper divisors (99447727).

228144657 is a wasteful number, since it uses less digits than its factorization.

228144657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849879.

The product of its digits is 107520, while the sum is 39.

The square root of 228144657 is about 15104.4581829339. The cubic root of 228144657 is about 611.0406468531.

The spelling of 228144657 in words is "two hundred twenty-eight million, one hundred forty-four thousand, six hundred fifty-seven".