223981156 has 27 divisors (see below), whose sum is σ = 456388569. Its totient is φ = 95902128.

The previous prime is 223981151. The next prime is 223981159. The reversal of 223981156 is 651189322.

The square root of 223981156 is 14966.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 104734756 + 119246400 = 10234^2 + 10920^2 .

It is not an unprimeable number, because it can be changed into a prime (223981151) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 208990 + ... + 210058.

Almost surely, 2^223981156 is an apocalyptic number.

223981156 is the 14966-th square number.

It is an amenable number.

223981156 is an abundant number, since it is smaller than the sum of its proper divisors (232407413).

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

223981156 is an equidigital number, since it uses as much as digits as its factorization.

223981156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 1078 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The cubic root of 223981156 is about 607.3007636944.

The spelling of 223981156 in words is "two hundred twenty-three million, nine hundred eighty-one thousand, one hundred fifty-six".