213001073 has 2 divisors, whose sum is σ = 213001074. Its totient is φ = 213001072.

The previous prime is 213001069. The next prime is 213001121. The reversal of 213001073 is 370100312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188567824 + 24433249 = 13732^2 + 4943^2 .

It is a cyclic number.

It is not a de Polignac number, because 213001073 - 2² = 213001069 is a prime.

It is not a weakly prime, because it can be changed into another prime (213001003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106500536 + 106500537.

It is an arithmetic number, because the mean of its divisors is an integer number (106500537).

Almost surely, 2^213001073 is an apocalyptic number.

It is an amenable number.

213001073 is a deficient number, since it is larger than the sum of its proper divisors (1).

213001073 is an equidigital number, since it uses as much as digits as its factorization.

213001073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 213001073 is about 14594.5562796544. The cubic root of 213001073 is about 597.2102648065.

Adding to 213001073 its reverse (370100312), we get a palindrome (583101385).

The spelling of 213001073 in words is "two hundred thirteen million, one thousand, seventy-three".