161005106 has 8 divisors (see below), whose sum is σ = 252008064. Its totient is φ = 77002420.

The previous prime is 161005049. The next prime is 161005133. The reversal of 161005106 is 601500161.

It is a happy number.

161005106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750010 + ... + 1750101.

It is an arithmetic number, because the mean of its divisors is an integer number (31501008).

Almost surely, 2^161005106 is an apocalyptic number.

161005106 is a deficient number, since it is larger than the sum of its proper divisors (91002958).

161005106 is a wasteful number, since it uses less digits than its factorization.

161005106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500136.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 161005106 is about 12688.7787434410. The cubic root of 161005106 is about 544.0179334666.

Adding to 161005106 its reverse (601500161), we get a palindrome (762505267).

The spelling of 161005106 in words is "one hundred sixty-one million, five thousand, one hundred six".