213399653 has 2 divisors, whose sum is σ = 213399654. Its totient is φ = 213399652.

The previous prime is 213399647. The next prime is 213399671. The reversal of 213399653 is 356993312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139405249 + 73994404 = 11807^2 + 8602^2 .

It is a cyclic number.

It is not a de Polignac number, because 213399653 - 2¹⁰ = 213398629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213399653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213399643) 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, 106699826 + 106699827.

It is an arithmetic number, because the mean of its divisors is an integer number (106699827).

Almost surely, 2^213399653 is an apocalyptic number.

It is an amenable number.

213399653 is a deficient number, since it is larger than the sum of its proper divisors (1).

213399653 is an equidigital number, since it uses as much as digits as its factorization.

213399653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131220, while the sum is 41.

The square root of 213399653 is about 14608.2049889779. The cubic root of 213399653 is about 597.5825442236.

The spelling of 213399653 in words is "two hundred thirteen million, three hundred ninety-nine thousand, six hundred fifty-three".