105620213 has 2 divisors, whose sum is σ = 105620214. Its totient is φ = 105620212.

The previous prime is 105620189. The next prime is 105620227. The reversal of 105620213 is 312026501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78818884 + 26801329 = 8878^2 + 5177^2 .

It is a cyclic number.

It is not a de Polignac number, because 105620213 - 2⁸ = 105619957 is a prime.

It is a super-2 number, since 2×105620213² = 22311258788330738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105620243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52810106 + 52810107.

It is an arithmetic number, because the mean of its divisors is an integer number (52810107).

Almost surely, 2^105620213 is an apocalyptic number.

It is an amenable number.

105620213 is a deficient number, since it is larger than the sum of its proper divisors (1).

105620213 is an equidigital number, since it uses as much as digits as its factorization.

105620213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 105620213 is about 10277.1695033214. The cubic root of 105620213 is about 472.6964561037.

Adding to 105620213 its reverse (312026501), we get a palindrome (417646714).

The spelling of 105620213 in words is "one hundred five million, six hundred twenty thousand, two hundred thirteen".