228135264242 has 18 divisors (see below), whose sum is σ = 363534869997. Its totient is φ = 107352367584.

The previous prime is 228135264239. The next prime is 228135264251. The reversal of 228135264242 is 242462531822.

It can be written as a sum of positive squares in 2 ways, for example, as 208795077481 + 19340186761 = 456941^2 + 139069^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=337739.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228135264242.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11473193 + ... + 11493059.

Almost surely, 2^228135264242 is an apocalyptic number.

228135264242 is a deficient number, since it is larger than the sum of its proper divisors (135399605755).

228135264242 is an frugal number, since it uses more digits than its factorization.

228135264242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39770 (or 19886 counting only the distinct ones).

The product of its digits is 368640, while the sum is 41.

The spelling of 228135264242 in words is "two hundred twenty-eight billion, one hundred thirty-five million, two hundred sixty-four thousand, two hundred forty-two".