502123417 has 2 divisors, whose sum is σ = 502123418. Its totient is φ = 502123416.

The previous prime is 502123403. The next prime is 502123439. The reversal of 502123417 is 714321205.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466732816 + 35390601 = 21604^2 + 5949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-502123417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 502123391 and 502123400.

It is not a weakly prime, because it can be changed into another prime (502123117) 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, 251061708 + 251061709.

It is an arithmetic number, because the mean of its divisors is an integer number (251061709).

Almost surely, 2^502123417 is an apocalyptic number.

It is an amenable number.

502123417 is a deficient number, since it is larger than the sum of its proper divisors (1).

502123417 is an equidigital number, since it uses as much as digits as its factorization.

502123417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 502123417 is about 22408.1105182923. The cubic root of 502123417 is about 794.8225106455.

The spelling of 502123417 in words is "five hundred two million, one hundred twenty-three thousand, four hundred seventeen".