223228247138 has 54 divisors (see below), whose sum is σ = 375106722147. Its totient is φ = 99584652960.

The previous prime is 223228247119. The next prime is 223228247183. The reversal of 223228247138 is 831742822322.

It can be written as a sum of positive squares in 5 ways, for example, as 45925775809 + 177302471329 = 214303^2 + 421073^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=334087.

It is a super-3 number, since 3×223228247138³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 269273708 + ... + 269274536.

Almost surely, 2^223228247138 is an apocalyptic number.

223228247138 is a deficient number, since it is larger than the sum of its proper divisors (151878475009).

223228247138 is an frugal number, since it uses more digits than its factorization.

223228247138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748 (or 875 counting only the distinct ones).

The product of its digits is 516096, while the sum is 44.

The spelling of 223228247138 in words is "two hundred twenty-three billion, two hundred twenty-eight million, two hundred forty-seven thousand, one hundred thirty-eight".