622106161 has 6 divisors (see below), whose sum is σ = 637651286. Its totient is φ = 606931200.

The previous prime is 622106159. The next prime is 622106183. The reversal of 622106161 is 161601226.

It can be written as a sum of positive squares in 3 ways, for example, as 20875761 + 601230400 = 4569^2 + 24520^2 .

It is not a de Polignac number, because 622106161 - 2¹ = 622106159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622100161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 183360 + ... + 186721.

Almost surely, 2^622106161 is an apocalyptic number.

It is an amenable number.

622106161 is a deficient number, since it is larger than the sum of its proper divisors (15545125).

622106161 is an equidigital number, since it uses as much as digits as its factorization.

622106161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370163 (or 370122 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 622106161 is about 24942.0560700196. The cubic root of 622106161 is about 853.6663594590. Note that the first 3 decimals are identical.

Adding to 622106161 its reverse (161601226), we get a palindrome (783707387).

The spelling of 622106161 in words is "six hundred twenty-two million, one hundred six thousand, one hundred sixty-one".