228145078 has 16 divisors (see below), whose sum is σ = 399088800. Its totient is φ = 97776168.

The previous prime is 228145061. The next prime is 228145091. The reversal of 228145078 is 870541822.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 165601 + ... + 166972.

It is an arithmetic number, because the mean of its divisors is an integer number (24943050).

Almost surely, 2^228145078 is an apocalyptic number.

228145078 is a deficient number, since it is larger than the sum of its proper divisors (170943722).

228145078 is an equidigital number, since it uses as much as digits as its factorization.

228145078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332596 (or 332582 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 228145078 is about 15104.4721192103. The cubic root of 228145078 is about 611.0410227081.

The spelling of 228145078 in words is "two hundred twenty-eight million, one hundred forty-five thousand, seventy-eight".