228146535 has 48 divisors (see below), whose sum is σ = 404040000. Its totient is φ = 119066112.

The previous prime is 228146531. The next prime is 228146537. The reversal of 228146535 is 535641822.

228146535 is a `hidden beast` number, since 2 + 2 + 81 + 46 + 535 = 666.

It is not a de Polignac number, because 228146535 - 2² = 228146531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228146535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228146531) 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 47 ways as a sum of consecutive naturals, for example, 653541 + ... + 653889.

It is an arithmetic number, because the mean of its divisors is an integer number (8417500).

Almost surely, 2^228146535 is an apocalyptic number.

228146535 is a deficient number, since it is larger than the sum of its proper divisors (175893465).

228146535 is a wasteful number, since it uses less digits than its factorization.

228146535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 629 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 228146535 is about 15104.5203498820. The cubic root of 228146535 is about 611.0423234665.

The spelling of 228146535 in words is "two hundred twenty-eight million, one hundred forty-six thousand, five hundred thirty-five".