123517441 has 2 divisors, whose sum is σ = 123517442. Its totient is φ = 123517440.

The previous prime is 123517421. The next prime is 123517451. The reversal of 123517441 is 144715321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121881600 + 1635841 = 11040^2 + 1279^2 .

It is a cyclic number.

It is not a de Polignac number, because 123517441 - 2¹³ = 123509249 is a prime.

It is not a weakly prime, because it can be changed into another prime (123517421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61758720 + 61758721.

It is an arithmetic number, because the mean of its divisors is an integer number (61758721).

Almost surely, 2^123517441 is an apocalyptic number.

It is an amenable number.

123517441 is a deficient number, since it is larger than the sum of its proper divisors (1).

123517441 is an equidigital number, since it uses as much as digits as its factorization.

123517441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 123517441 is about 11113.8400654319. The cubic root of 123517441 is about 498.0153877172.

The spelling of 123517441 in words is "one hundred twenty-three million, five hundred seventeen thousand, four hundred forty-one".