123708349 has 2 divisors, whose sum is σ = 123708350. Its totient is φ = 123708348.

The previous prime is 123708311. The next prime is 123708359. The reversal of 123708349 is 943807321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86620249 + 37088100 = 9307^2 + 6090^2 .

It is a cyclic number.

It is not a de Polignac number, because 123708349 - 2²¹ = 121611197 is a prime.

It is a super-2 number, since 2×123708349² = 30607511224611602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123708359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61854174 + 61854175.

It is an arithmetic number, because the mean of its divisors is an integer number (61854175).

Almost surely, 2^123708349 is an apocalyptic number.

It is an amenable number.

123708349 is a deficient number, since it is larger than the sum of its proper divisors (1).

123708349 is an equidigital number, since it uses as much as digits as its factorization.

123708349 is an odious number, because the sum of its binary digits is odd.

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

The square root of 123708349 is about 11122.4254998629. The cubic root of 123708349 is about 498.2718324220.

The spelling of 123708349 in words is "one hundred twenty-three million, seven hundred eight thousand, three hundred forty-nine".