223641156 has 48 divisors (see below), whose sum is σ = 541981440. Its totient is φ = 71688960.

The previous prime is 223641133. The next prime is 223641193. The reversal of 223641156 is 651146322.

223641156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96645 + ... + 98931.

It is an arithmetic number, because the mean of its divisors is an integer number (11291280).

Almost surely, 2^223641156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223641156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270990720).

223641156 is an abundant number, since it is smaller than the sum of its proper divisors (318340284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223641156 is a wasteful number, since it uses less digits than its factorization.

223641156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604 (or 2602 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 223641156 is about 14954.6366054144. The cubic root of 223641156 is about 606.9933169572.

Adding to 223641156 its reverse (651146322), we get a palindrome (874787478).

The spelling of 223641156 in words is "two hundred twenty-three million, six hundred forty-one thousand, one hundred fifty-six".