223538156 has 6 divisors (see below), whose sum is σ = 391191780. Its totient is φ = 111769076.

The previous prime is 223538143. The next prime is 223538167. The reversal of 223538156 is 651835322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27942266 + ... + 27942273.

It is an arithmetic number, because the mean of its divisors is an integer number (65198630).

Almost surely, 2^223538156 is an apocalyptic number.

It is an amenable number.

223538156 is a deficient number, since it is larger than the sum of its proper divisors (167653624).

223538156 is a wasteful number, since it uses less digits than its factorization.

223538156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55884543 (or 55884541 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 223538156 is about 14951.1924608039. The cubic root of 223538156 is about 606.9001171882.

The spelling of 223538156 in words is "two hundred twenty-three million, five hundred thirty-eight thousand, one hundred fifty-six".