210242017 has 2 divisors, whose sum is σ = 210242018. Its totient is φ = 210242016.

The previous prime is 210241987. The next prime is 210242027. The reversal of 210242017 is 710242012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148084561 + 62157456 = 12169^2 + 7884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210242017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210241985 and 210242003.

It is not a weakly prime, because it can be changed into another prime (210242027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105121008 + 105121009.

It is an arithmetic number, because the mean of its divisors is an integer number (105121009).

Almost surely, 2^210242017 is an apocalyptic number.

It is an amenable number.

210242017 is a deficient number, since it is larger than the sum of its proper divisors (1).

210242017 is an equidigital number, since it uses as much as digits as its factorization.

210242017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 210242017 is about 14499.7247215249. The cubic root of 210242017 is about 594.6204457360.

Adding to 210242017 its reverse (710242012), we get a palindrome (920484029).

The spelling of 210242017 in words is "two hundred ten million, two hundred forty-two thousand, seventeen".