228123007 has 32 divisors (see below), whose sum is σ = 275742720. Its totient is φ = 184710240.

The previous prime is 228123001. The next prime is 228123013. The reversal of 228123007 is 700321822.

It is an interprime number because it is at equal distance from previous prime (228123001) and next prime (228123013).

It is a cyclic number.

It is not a de Polignac number, because 228123007 - 2¹⁹ = 227598719 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 (228123001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1741332 + ... + 1741462.

It is an arithmetic number, because the mean of its divisors is an integer number (8616960).

Almost surely, 2^228123007 is an apocalyptic number.

228123007 is a deficient number, since it is larger than the sum of its proper divisors (47619713).

228123007 is a wasteful number, since it uses less digits than its factorization.

228123007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 228123007 is about 15103.7414901077. The cubic root of 228123007 is about 611.0213178176.

Adding to 228123007 its reverse (700321822), we get a palindrome (928444829).

The spelling of 228123007 in words is "two hundred twenty-eight million, one hundred twenty-three thousand, seven".