223601345 has 16 divisors (see below), whose sum is σ = 295142400. Its totient is φ = 162614320.

The previous prime is 223601341. The next prime is 223601351. The reversal of 223601345 is 543106322.

223601345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223601345 - 2² = 223601341 is a prime.

It is a super-2 number, since 2×223601345² = 99995122971618050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (223601341) 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, 10145 + ... + 23454.

It is an arithmetic number, because the mean of its divisors is an integer number (18446400).

Almost surely, 2^223601345 is an apocalyptic number.

It is an amenable number.

223601345 is a deficient number, since it is larger than the sum of its proper divisors (71541055).

223601345 is an equidigital number, since it uses as much as digits as its factorization.

223601345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33637 (or 33615 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 223601345 is about 14953.3054874165. The cubic root of 223601345 is about 606.9572972826.

Adding to 223601345 its reverse (543106322), we get a palindrome (766707667).

The spelling of 223601345 in words is "two hundred twenty-three million, six hundred one thousand, three hundred forty-five".