404102213 has 2 divisors, whose sum is σ = 404102214. Its totient is φ = 404102212.

The previous prime is 404102201. The next prime is 404102221. The reversal of 404102213 is 312201404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231100804 + 173001409 = 15202^2 + 13153^2 .

It is a cyclic number.

It is not a de Polignac number, because 404102213 - 2¹⁰ = 404101189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404102191 and 404102200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404102813) 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, 202051106 + 202051107.

It is an arithmetic number, because the mean of its divisors is an integer number (202051107).

Almost surely, 2^404102213 is an apocalyptic number.

It is an amenable number.

404102213 is a deficient number, since it is larger than the sum of its proper divisors (1).

404102213 is an equidigital number, since it uses as much as digits as its factorization.

404102213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 404102213 is about 20102.2937248464. The cubic root of 404102213 is about 739.3165182934.

Adding to 404102213 its reverse (312201404), we get a palindrome (716303617).

The spelling of 404102213 in words is "four hundred four million, one hundred two thousand, two hundred thirteen".