123719741 has 2 divisors, whose sum is σ = 123719742. Its totient is φ = 123719740.

The previous prime is 123719707. The next prime is 123719747. The reversal of 123719741 is 147917321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77070841 + 46648900 = 8779^2 + 6830^2 .

It is an emirp because it is prime and its reverse (147917321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123719741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123719747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61859870 + 61859871.

It is an arithmetic number, because the mean of its divisors is an integer number (61859871).

Almost surely, 2^123719741 is an apocalyptic number.

It is an amenable number.

123719741 is a deficient number, since it is larger than the sum of its proper divisors (1).

123719741 is an equidigital number, since it uses as much as digits as its factorization.

123719741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 35.

The square root of 123719741 is about 11122.9376065858. The cubic root of 123719741 is about 498.2871268316.

The spelling of 123719741 in words is "one hundred twenty-three million, seven hundred nineteen thousand, seven hundred forty-one".