123345773 has 4 divisors (see below), whose sum is σ = 123875388. Its totient is φ = 122816160.

The previous prime is 123345769. The next prime is 123345797. The reversal of 123345773 is 377543321.

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 63329764 + 60016009 = 7958^2 + 7747^2 .

It is a cyclic number.

It is not a de Polignac number, because 123345773 - 2² = 123345769 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 (123345763) 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, 264458 + ... + 264923.

It is an arithmetic number, because the mean of its divisors is an integer number (30968847).

Almost surely, 2^123345773 is an apocalyptic number.

It is an amenable number.

123345773 is a deficient number, since it is larger than the sum of its proper divisors (529615).

123345773 is an equidigital number, since it uses as much as digits as its factorization.

123345773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529614.

The product of its digits is 52920, while the sum is 35.

The square root of 123345773 is about 11106.1142169528. The cubic root of 123345773 is about 497.7845621687.

The spelling of 123345773 in words is "one hundred twenty-three million, three hundred forty-five thousand, seven hundred seventy-three".