228144723 has 16 divisors (see below), whose sum is σ = 320544000. Its totient is φ = 143938080.

The previous prime is 228144703. The next prime is 228144727. The reversal of 228144723 is 327441822.

It is a happy number.

It is not a de Polignac number, because 228144723 - 2¹⁸ = 227882579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228144727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78313 + ... + 81173.

It is an arithmetic number, because the mean of its divisors is an integer number (20034000).

Almost surely, 2^228144723 is an apocalyptic number.

228144723 is a deficient number, since it is larger than the sum of its proper divisors (92399277).

228144723 is a wasteful number, since it uses less digits than its factorization.

228144723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282.

The product of its digits is 21504, while the sum is 33.

The square root of 228144723 is about 15104.4603677192. The cubic root of 228144723 is about 611.0407057757.

The spelling of 228144723 in words is "two hundred twenty-eight million, one hundred forty-four thousand, seven hundred twenty-three".