123708049 has 2 divisors, whose sum is σ = 123708050. Its totient is φ = 123708048.

The previous prime is 123708043. The next prime is 123708059. The reversal of 123708049 is 940807321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96334225 + 27373824 = 9815^2 + 5232^2 .

It is an emirp because it is prime and its reverse (940807321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123708049 - 2³ = 123708041 is a prime.

It is not a weakly prime, because it can be changed into another prime (123708041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61854024 + 61854025.

It is an arithmetic number, because the mean of its divisors is an integer number (61854025).

Almost surely, 2^123708049 is an apocalyptic number.

It is an amenable number.

123708049 is a deficient number, since it is larger than the sum of its proper divisors (1).

123708049 is an equidigital number, since it uses as much as digits as its factorization.

123708049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 123708049 is about 11122.4120135877. The cubic root of 123708049 is about 498.2714296422.

The spelling of 123708049 in words is "one hundred twenty-three million, seven hundred eight thousand, forty-nine".