210300997 has 2 divisors, whose sum is σ = 210300998. Its totient is φ = 210300996.

The previous prime is 210300989. The next prime is 210301009. The reversal of 210300997 is 799003012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182412036 + 27888961 = 13506^2 + 5281^2 .

It is a cyclic number.

It is not a de Polignac number, because 210300997 - 2³ = 210300989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210300967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105150498 + 105150499.

It is an arithmetic number, because the mean of its divisors is an integer number (105150499).

Almost surely, 2^210300997 is an apocalyptic number.

It is an amenable number.

210300997 is a deficient number, since it is larger than the sum of its proper divisors (1).

210300997 is an equidigital number, since it uses as much as digits as its factorization.

210300997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 210300997 is about 14501.7584106204. The cubic root of 210300997 is about 594.6760442558.

The spelling of 210300997 in words is "two hundred ten million, three hundred thousand, nine hundred ninety-seven".