228145023 has 12 divisors (see below), whose sum is σ = 329691648. Its totient is φ = 152028000.

The previous prime is 228145013. The next prime is 228145031. The reversal of 228145023 is 320541822.

It is not a de Polignac number, because 228145023 - 2⁸ = 228144767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228145013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22786 + ... + 31232.

It is an arithmetic number, because the mean of its divisors is an integer number (27474304).

Almost surely, 2^228145023 is an apocalyptic number.

228145023 is a deficient number, since it is larger than the sum of its proper divisors (101546625).

228145023 is a wasteful number, since it uses less digits than its factorization.

228145023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11454 (or 11451 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 228145023 is about 15104.4702985573. The cubic root of 228145023 is about 611.0409736059.

Adding to 228145023 its reverse (320541822), we get a palindrome (548686845).

The spelling of 228145023 in words is "two hundred twenty-eight million, one hundred forty-five thousand, twenty-three".