123224345 has 4 divisors (see below), whose sum is σ = 147869220. Its totient is φ = 98579472.

The previous prime is 123224293. The next prime is 123224351. The reversal of 123224345 is 543422321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543422321 = 13 ⋅41801717.

It can be written as a sum of positive squares in 2 ways, for example, as 89340304 + 33884041 = 9452^2 + 5821^2 .

It is a cyclic number.

It is not a de Polignac number, because 123224345 - 2²⁶ = 56115481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12322430 + ... + 12322439.

It is an arithmetic number, because the mean of its divisors is an integer number (36967305).

Almost surely, 2^123224345 is an apocalyptic number.

It is an amenable number.

123224345 is a deficient number, since it is larger than the sum of its proper divisors (24644875).

123224345 is an equidigital number, since it uses as much as digits as its factorization.

123224345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24644874.

The product of its digits is 5760, while the sum is 26.

The square root of 123224345 is about 11100.6461523643. The cubic root of 123224345 is about 497.6211601911.

Adding to 123224345 its reverse (543422321), we get a palindrome (666646666).

The spelling of 123224345 in words is "one hundred twenty-three million, two hundred twenty-four thousand, three hundred forty-five".