161332106 has 36 divisors (see below), whose sum is σ = 271395222. Its totient is φ = 71501664.

The previous prime is 161332079. The next prime is 161332109. The reversal of 161332106 is 601233161.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 141395881 + 19936225 = 11891^2 + 4465^2 .

It is not an unprimeable number, because it can be changed into a prime (161332109) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3043976 + ... + 3044028.

Almost surely, 2^161332106 is an apocalyptic number.

161332106 is a deficient number, since it is larger than the sum of its proper divisors (110063116).

161332106 is an equidigital number, since it uses as much as digits as its factorization.

161332106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 161332106 is about 12701.6576083596. The cubic root of 161332106 is about 544.3859830081.

Adding to 161332106 its reverse (601233161), we get a palindrome (762565267).

The spelling of 161332106 in words is "one hundred sixty-one million, three hundred thirty-two thousand, one hundred six".