123323545 has 4 divisors (see below), whose sum is σ = 147988260. Its totient is φ = 98658832.

The previous prime is 123323537. The next prime is 123323561. The reversal of 123323545 is 545323321.

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 13220496 + 110103049 = 3636^2 + 10493^2 .

It is a cyclic number.

It is not a de Polignac number, because 123323545 - 2³ = 123323537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12332350 + ... + 12332359.

It is an arithmetic number, because the mean of its divisors is an integer number (36997065).

Almost surely, 2^123323545 is an apocalyptic number.

It is an amenable number.

123323545 is a deficient number, since it is larger than the sum of its proper divisors (24664715).

123323545 is an equidigital number, since it uses as much as digits as its factorization.

123323545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24664714.

The product of its digits is 10800, while the sum is 28.

The square root of 123323545 is about 11105.1134618247. The cubic root of 123323545 is about 497.7546586444.

Adding to 123323545 its reverse (545323321), we get a palindrome (668646866).

The spelling of 123323545 in words is "one hundred twenty-three million, three hundred twenty-three thousand, five hundred forty-five".