223065145 has 8 divisors (see below), whose sum is σ = 267917256. Its totient is φ = 178292736.

The previous prime is 223065137. The next prime is 223065197. The reversal of 223065145 is 541560322.

It can be written as a sum of positive squares in 4 ways, for example, as 87086224 + 135978921 = 9332^2 + 11661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223065145 - 2³ = 223065137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13582 + ... + 25111.

It is an arithmetic number, because the mean of its divisors is an integer number (33489657).

Almost surely, 2^223065145 is an apocalyptic number.

It is an amenable number.

223065145 is a deficient number, since it is larger than the sum of its proper divisors (44852111).

223065145 is a wasteful number, since it uses less digits than its factorization.

223065145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39851.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 223065145 is about 14935.3655797239. The cubic root of 223065145 is about 606.4717441579.

The spelling of 223065145 in words is "two hundred twenty-three million, sixty-five thousand, one hundred forty-five".