123148717 has 2 divisors, whose sum is σ = 123148718. Its totient is φ = 123148716.

The previous prime is 123148699. The next prime is 123148723. The reversal of 123148717 is 717841321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97199881 + 25948836 = 9859^2 + 5094^2 .

It is a cyclic number.

It is not a de Polignac number, because 123148717 - 2⁷ = 123148589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123148787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61574358 + 61574359.

It is an arithmetic number, because the mean of its divisors is an integer number (61574359).

Almost surely, 2^123148717 is an apocalyptic number.

It is an amenable number.

123148717 is a deficient number, since it is larger than the sum of its proper divisors (1).

123148717 is an equidigital number, since it uses as much as digits as its factorization.

123148717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 34.

The square root of 123148717 is about 11097.2391611608. The cubic root of 123148717 is about 497.5193356289.

The spelling of 123148717 in words is "one hundred twenty-three million, one hundred forty-eight thousand, seven hundred seventeen".