213289147 has 2 divisors, whose sum is σ = 213289148. Its totient is φ = 213289146.

The previous prime is 213289121. The next prime is 213289163. The reversal of 213289147 is 741982312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213289147 is a prime.

It is not a weakly prime, because it can be changed into another prime (213289187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106644573 + 106644574.

It is an arithmetic number, because the mean of its divisors is an integer number (106644574).

Almost surely, 2^213289147 is an apocalyptic number.

213289147 is a deficient number, since it is larger than the sum of its proper divisors (1).

213289147 is an equidigital number, since it uses as much as digits as its factorization.

213289147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 213289147 is about 14604.4221727530. The cubic root of 213289147 is about 597.4793765166.

The spelling of 213289147 in words is "two hundred thirteen million, two hundred eighty-nine thousand, one hundred forty-seven".