16490213 has 2 divisors, whose sum is σ = 16490214. Its totient is φ = 16490212.

The previous prime is 16490207. The next prime is 16490219. The reversal of 16490213 is 31209461.

It is a balanced prime because it is at equal distance from previous prime (16490207) and next prime (16490219).

It can be written as a sum of positive squares in only one way, i.e., 13823524 + 2666689 = 3718^2 + 1633^2 .

It is a cyclic number.

It is not a de Polignac number, because 16490213 - 2¹⁰ = 16489189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_1060595 and since 16490213 and 1060595 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16490219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8245106 + 8245107.

It is an arithmetic number, because the mean of its divisors is an integer number (8245107).

Almost surely, 2^16490213 is an apocalyptic number.

It is an amenable number.

16490213 is a deficient number, since it is larger than the sum of its proper divisors (1).

16490213 is an equidigital number, since it uses as much as digits as its factorization.

16490213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 16490213 is about 4060.8143272009. The cubic root of 16490213 is about 254.5318232612.

Adding to 16490213 its reverse (31209461), we get a palindrome (47699674).

The spelling of 16490213 in words is "sixteen million, four hundred ninety thousand, two hundred thirteen".