162205213 has 2 divisors, whose sum is σ = 162205214. Its totient is φ = 162205212.

The previous prime is 162205201. The next prime is 162205217. The reversal of 162205213 is 312502261.

162205213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116683204 + 45522009 = 10802^2 + 6747^2 .

It is an emirp because it is prime and its reverse (312502261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162205213 - 2⁵ = 162205181 is a prime.

It is a super-2 number, since 2×162205213² = 52621062248750738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162205217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81102606 + 81102607.

It is an arithmetic number, because the mean of its divisors is an integer number (81102607).

Almost surely, 2^162205213 is an apocalyptic number.

It is an amenable number.

162205213 is a deficient number, since it is larger than the sum of its proper divisors (1).

162205213 is an equidigital number, since it uses as much as digits as its factorization.

162205213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 162205213 is about 12735.9810379884. The cubic root of 162205213 is about 545.3662639136.

Adding to 162205213 its reverse (312502261), we get a palindrome (474707474).

The spelling of 162205213 in words is "one hundred sixty-two million, two hundred five thousand, two hundred thirteen".