210002147 has 2 divisors, whose sum is σ = 210002148. Its totient is φ = 210002146.

The previous prime is 210002141. The next prime is 210002179. The reversal of 210002147 is 741200012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210002147 - 2⁶ = 210002083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (210002141) 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, 105001073 + 105001074.

It is an arithmetic number, because the mean of its divisors is an integer number (105001074).

Almost surely, 2^210002147 is an apocalyptic number.

210002147 is a deficient number, since it is larger than the sum of its proper divisors (1).

210002147 is an equidigital number, since it uses as much as digits as its factorization.

210002147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 210002147 is about 14491.4508245379. The cubic root of 210002147 is about 594.3942209203.

Adding to 210002147 its reverse (741200012), we get a palindrome (951202159).

The spelling of 210002147 in words is "two hundred ten million, two thousand, one hundred forty-seven".