163206061 has 2 divisors, whose sum is σ = 163206062. Its totient is φ = 163206060.

The previous prime is 163206047. The next prime is 163206077. The reversal of 163206061 is 160602361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100701225 + 62504836 = 10035^2 + 7906^2 .

It is a cyclic number.

It is not a de Polignac number, because 163206061 - 2¹³ = 163197869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163206031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81603030 + 81603031.

It is an arithmetic number, because the mean of its divisors is an integer number (81603031).

Almost surely, 2^163206061 is an apocalyptic number.

It is an amenable number.

163206061 is a deficient number, since it is larger than the sum of its proper divisors (1).

163206061 is an equidigital number, since it uses as much as digits as its factorization.

163206061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 163206061 is about 12775.2127575238. The cubic root of 163206061 is about 546.4856482669.

The spelling of 163206061 in words is "one hundred sixty-three million, two hundred six thousand, sixty-one".