161200106 has 8 divisors (see below), whose sum is σ = 242264064. Its totient is φ = 80445420.

The previous prime is 161200099. The next prime is 161200111. The reversal of 161200106 is 601002161.

It is a happy number.

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

It is a super-2 number, since 2×161200106² = 51970948348822472, which contains 22 as substring.

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, 76010 + ... + 78101.

It is an arithmetic number, because the mean of its divisors is an integer number (30283008).

Almost surely, 2^161200106 is an apocalyptic number.

161200106 is a deficient number, since it is larger than the sum of its proper divisors (81063958).

161200106 is a wasteful number, since it uses less digits than its factorization.

161200106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154636.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 161200106 is about 12696.4603728756. The cubic root of 161200106 is about 544.2374724636.

Adding to 161200106 its reverse (601002161), we get a palindrome (762202267).

The spelling of 161200106 in words is "one hundred sixty-one million, two hundred thousand, one hundred six".