123322789 has 4 divisors (see below), whose sum is σ = 123597900. Its totient is φ = 123047680.

The previous prime is 123322747. The next prime is 123322807. The reversal of 123322789 is 987223321.

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 74909025 + 48413764 = 8655^2 + 6958^2 .

It is a cyclic number.

It is not a de Polignac number, because 123322789 - 2¹⁵ = 123290021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123322289) 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, 136882 + ... + 137779.

It is an arithmetic number, because the mean of its divisors is an integer number (30899475).

Almost surely, 2^123322789 is an apocalyptic number.

It is an amenable number.

123322789 is a deficient number, since it is larger than the sum of its proper divisors (275111).

123322789 is an equidigital number, since it uses as much as digits as its factorization.

123322789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275110.

The product of its digits is 36288, while the sum is 37.

The square root of 123322789 is about 11105.0794233990. The cubic root of 123322789 is about 497.7536415278.

The spelling of 123322789 in words is "one hundred twenty-three million, three hundred twenty-two thousand, seven hundred eighty-nine".