100659161 has 2 divisors, whose sum is σ = 100659162. Its totient is φ = 100659160.

The previous prime is 100659151. The next prime is 100659179. The reversal of 100659161 is 161956001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80910025 + 19749136 = 8995^2 + 4444^2 .

It is an emirp because it is prime and its reverse (161956001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100659161 - 2¹⁰ = 100658137 is a prime.

It is not a weakly prime, because it can be changed into another prime (100659121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50329580 + 50329581.

It is an arithmetic number, because the mean of its divisors is an integer number (50329581).

Almost surely, 2^100659161 is an apocalyptic number.

It is an amenable number.

100659161 is a deficient number, since it is larger than the sum of its proper divisors (1).

100659161 is an equidigital number, since it uses as much as digits as its factorization.

100659161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 100659161 is about 10032.9039166136. The cubic root of 100659161 is about 465.1765021560.

The spelling of 100659161 in words is "one hundred million, six hundred fifty-nine thousand, one hundred sixty-one".