223554645 has 12 divisors (see below), whose sum is σ = 387494796. Its totient is φ = 119229120.

The previous prime is 223554623. The next prime is 223554659. The reversal of 223554645 is 546455322.

223554645 is a `hidden beast` number, since 2 + 2 + 3 + 5 + 5 + 4 + 645 = 666.

223554645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 138509361 + 85045284 = 11769^2 + 9222^2 .

It is not a de Polignac number, because 223554645 - 2⁶ = 223554581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2483896 + ... + 2483985.

It is an arithmetic number, because the mean of its divisors is an integer number (32291233).

Almost surely, 2^223554645 is an apocalyptic number.

It is an amenable number.

223554645 is a deficient number, since it is larger than the sum of its proper divisors (163940151).

223554645 is a wasteful number, since it uses less digits than its factorization.

223554645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4967892 (or 4967889 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 223554645 is about 14951.7438782237. The cubic root of 223554645 is about 606.9150392194.

It can be divided in two parts, 22355 and 4645, that added together give a cube (27000 = 30³).

The spelling of 223554645 in words is "two hundred twenty-three million, five hundred fifty-four thousand, six hundred forty-five".