18050317 has 2 divisors, whose sum is σ = 18050318. Its totient is φ = 18050316.

The previous prime is 18050309. The next prime is 18050321. The reversal of 18050317 is 71305081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15139881 + 2910436 = 3891^2 + 1706^2 .

It is a cyclic number.

It is not a de Polignac number, because 18050317 - 2³ = 18050309 is a prime.

It is equal to p_1154329 and since 18050317 and 1154329 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 18050291 and 18050300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18050917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9025158 + 9025159.

It is an arithmetic number, because the mean of its divisors is an integer number (9025159).

Almost surely, 2^18050317 is an apocalyptic number.

It is an amenable number.

18050317 is a deficient number, since it is larger than the sum of its proper divisors (1).

18050317 is an equidigital number, since it uses as much as digits as its factorization.

18050317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 18050317 is about 4248.5664641147. The cubic root of 18050317 is about 262.3181119417.

Adding to 18050317 its reverse (71305081), we get a palindrome (89355398).

The spelling of 18050317 in words is "eighteen million, fifty thousand, three hundred seventeen".