106620161 has 2 divisors, whose sum is σ = 106620162. Its totient is φ = 106620160.

The previous prime is 106620149. The next prime is 106620167. The reversal of 106620161 is 161026601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91565761 + 15054400 = 9569^2 + 3880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106620161 is a prime.

It is a super-2 number, since 2×106620161² = 22735717463331842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (106620167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53310080 + 53310081.

It is an arithmetic number, because the mean of its divisors is an integer number (53310081).

Almost surely, 2^106620161 is an apocalyptic number.

It is an amenable number.

106620161 is a deficient number, since it is larger than the sum of its proper divisors (1).

106620161 is an equidigital number, since it uses as much as digits as its factorization.

106620161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 106620161 is about 10325.7038985243. The cubic root of 106620161 is about 474.1835073736.

Adding to 106620161 its reverse (161026601), we get a palindrome (267646762).

The spelling of 106620161 in words is "one hundred six million, six hundred twenty thousand, one hundred sixty-one".