123706613 has 2 divisors, whose sum is σ = 123706614. Its totient is φ = 123706612.

The previous prime is 123706573. The next prime is 123706621. The reversal of 123706613 is 316607321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118875409 + 4831204 = 10903^2 + 2198^2 .

It is a cyclic number.

It is not a de Polignac number, because 123706613 - 2⁸ = 123706357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123706013) 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, 61853306 + 61853307.

It is an arithmetic number, because the mean of its divisors is an integer number (61853307).

Almost surely, 2^123706613 is an apocalyptic number.

It is an amenable number.

123706613 is a deficient number, since it is larger than the sum of its proper divisors (1).

123706613 is an equidigital number, since it uses as much as digits as its factorization.

123706613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 123706613 is about 11122.3474590574. The cubic root of 123706613 is about 498.2695016606.

The spelling of 123706613 in words is "one hundred twenty-three million, seven hundred six thousand, six hundred thirteen".