223545212 has 24 divisors (see below), whose sum is σ = 430036992. Its totient is φ = 100833200.

The previous prime is 223545193. The next prime is 223545239. The reversal of 223545212 is 212545322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13628 + ... + 25155.

It is an arithmetic number, because the mean of its divisors is an integer number (17918208).

Almost surely, 2^223545212 is an apocalyptic number.

223545212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

223545212 is a deficient number, since it is larger than the sum of its proper divisors (206491780).

223545212 is a wasteful number, since it uses less digits than its factorization.

223545212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38929 (or 38927 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 223545212 is about 14951.4284267424. The cubic root of 223545212 is about 606.9065027382.

The spelling of 223545212 in words is "two hundred twenty-three million, five hundred forty-five thousand, two hundred twelve".