223141145 has 4 divisors (see below), whose sum is σ = 267769380. Its totient is φ = 178512912.

The previous prime is 223141141. The next prime is 223141153. The reversal of 223141145 is 541141322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541141322 = 2 ⋅270570661.

It can be written as a sum of positive squares in 2 ways, for example, as 31899904 + 191241241 = 5648^2 + 13829^2 .

It is a cyclic number.

It is not a de Polignac number, because 223141145 - 2² = 223141141 is a prime.

It is a super-3 number, since 3×223141145³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 223141145.

It is not an unprimeable number, because it can be changed into a prime (223141141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22314110 + ... + 22314119.

It is an arithmetic number, because the mean of its divisors is an integer number (66942345).

Almost surely, 2^223141145 is an apocalyptic number.

It is an amenable number.

223141145 is a deficient number, since it is larger than the sum of its proper divisors (44628235).

223141145 is an equidigital number, since it uses as much as digits as its factorization.

223141145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44628234.

The product of its digits is 960, while the sum is 23.

The square root of 223141145 is about 14937.9096596545. The cubic root of 223141145 is about 606.5406128568.

Adding to 223141145 its reverse (541141322), we get a palindrome (764282467).

The spelling of 223141145 in words is "two hundred twenty-three million, one hundred forty-one thousand, one hundred forty-five".