222324145 has 4 divisors (see below), whose sum is σ = 266788980. Its totient is φ = 177859312.

The previous prime is 222324143. The next prime is 222324163. The reversal of 222324145 is 541423222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 149597361 + 72726784 = 12231^2 + 8528^2 .

It is a cyclic number.

It is not a de Polignac number, because 222324145 - 2¹ = 222324143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222324143) 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, 22232410 + ... + 22232419.

It is an arithmetic number, because the mean of its divisors is an integer number (66697245).

Almost surely, 2^222324145 is an apocalyptic number.

It is an amenable number.

222324145 is a deficient number, since it is larger than the sum of its proper divisors (44464835).

222324145 is an equidigital number, since it uses as much as digits as its factorization.

222324145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44464834.

The product of its digits is 3840, while the sum is 25.

The square root of 222324145 is about 14910.5380519953. The cubic root of 222324145 is about 605.7994531126.

Adding to 222324145 its reverse (541423222), we get a palindrome (763747367).

The spelling of 222324145 in words is "two hundred twenty-two million, three hundred twenty-four thousand, one hundred forty-five".