223723081 has 16 divisors (see below), whose sum is σ = 245131200. Its totient is φ = 203370048.

The previous prime is 223723033. The next prime is 223723133. The reversal of 223723081 is 180327322.

223723081 = 1344² + 1345² + ... + 1457².

It is a cyclic number.

It is not a de Polignac number, because 223723081 - 2⁷ = 223722953 is a prime.

It is a super-2 number, since 2×223723081² = 100104033944265122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (223723021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94150 + ... + 96496.

It is an arithmetic number, because the mean of its divisors is an integer number (15320700).

Almost surely, 2^223723081 is an apocalyptic number.

It is an amenable number.

223723081 is a deficient number, since it is larger than the sum of its proper divisors (21408119).

223723081 is a wasteful number, since it uses less digits than its factorization.

223723081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 223723081 is about 14957.3754716528. The cubic root of 223723081 is about 607.0674265374.

The spelling of 223723081 in words is "two hundred twenty-three million, seven hundred twenty-three thousand, eighty-one".