106505161 has 4 divisors (see below), whose sum is σ = 121720192. Its totient is φ = 91290132.

The previous prime is 106505141. The next prime is 106505173. The reversal of 106505161 is 161505601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106505161 - 2⁹ = 106504649 is a prime.

It is a super-2 number, since 2×106505161² = 22686698639271842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106505131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7607505 + ... + 7607518.

It is an arithmetic number, because the mean of its divisors is an integer number (30430048).

Almost surely, 2^106505161 is an apocalyptic number.

It is an amenable number.

106505161 is a deficient number, since it is larger than the sum of its proper divisors (15215031).

106505161 is an equidigital number, since it uses as much as digits as its factorization.

106505161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15215030.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 106505161 is about 10320.1337685129. The cubic root of 106505161 is about 474.0129620151.

The spelling of 106505161 in words is "one hundred six million, five hundred five thousand, one hundred sixty-one".