123144773 has 2 divisors, whose sum is σ = 123144774. Its totient is φ = 123144772.

The previous prime is 123144751. The next prime is 123144781. The reversal of 123144773 is 377441321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79887844 + 43256929 = 8938^2 + 6577^2 .

It is an emirp because it is prime and its reverse (377441321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123144773 - 2⁶ = 123144709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123144793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61572386 + 61572387.

It is an arithmetic number, because the mean of its divisors is an integer number (61572387).

Almost surely, 2^123144773 is an apocalyptic number.

It is an amenable number.

123144773 is a deficient number, since it is larger than the sum of its proper divisors (1).

123144773 is an equidigital number, since it uses as much as digits as its factorization.

123144773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 32.

The square root of 123144773 is about 11097.0614578815. The cubic root of 123144773 is about 497.5140243347.

The spelling of 123144773 in words is "one hundred twenty-three million, one hundred forty-four thousand, seven hundred seventy-three".