223523156 has 12 divisors (see below), whose sum is σ = 391480320. Its totient is φ = 111671640.

The previous prime is 223523147. The next prime is 223523161. The reversal of 223523156 is 651325322.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16730 + ... + 26961.

It is an arithmetic number, because the mean of its divisors is an integer number (32623360).

Almost surely, 2^223523156 is an apocalyptic number.

It is an amenable number.

223523156 is a deficient number, since it is larger than the sum of its proper divisors (167957164).

223523156 is a wasteful number, since it uses less digits than its factorization.

223523156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44974 (or 44972 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 223523156 is about 14950.6908201594. The cubic root of 223523156 is about 606.8865420183.

Adding to 223523156 its reverse (651325322), we get a palindrome (874848478).

The spelling of 223523156 in words is "two hundred twenty-three million, five hundred twenty-three thousand, one hundred fifty-six".