228146523 has 8 divisors (see below), whose sum is σ = 331849536. Its totient is φ = 138270600.

The previous prime is 228146489. The next prime is 228146531. The reversal of 228146523 is 325641822.

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

It is not a de Polignac number, because 228146523 - 2⁹ = 228146011 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 6913531 = 228146523 / (2 + 2 + 8 + 1 + 4 + 6 + 5 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (228146543) 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 7 ways as a sum of consecutive naturals, for example, 3456733 + ... + 3456798.

It is an arithmetic number, because the mean of its divisors is an integer number (41481192).

Almost surely, 2^228146523 is an apocalyptic number.

228146523 is a deficient number, since it is larger than the sum of its proper divisors (103703013).

228146523 is a wasteful number, since it uses less digits than its factorization.

228146523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6913545.

The product of its digits is 23040, while the sum is 33.

The square root of 228146523 is about 15104.5199526499. The cubic root of 228146523 is about 611.0423127533.

The spelling of 228146523 in words is "two hundred twenty-eight million, one hundred forty-six thousand, five hundred twenty-three".