161442107 has 8 divisors (see below), whose sum is σ = 170101200. Its totient is φ = 152799264.

The previous prime is 161442089. The next prime is 161442131. The reversal of 161442107 is 701244161.

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

It is a cyclic number.

It is not a de Polignac number, because 161442107 - 2¹⁴ = 161425723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161442607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20069 + ... + 26937.

It is an arithmetic number, because the mean of its divisors is an integer number (21262650).

Almost surely, 2^161442107 is an apocalyptic number.

161442107 is a deficient number, since it is larger than the sum of its proper divisors (8659093).

161442107 is a wasteful number, since it uses less digits than its factorization.

161442107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8125.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 161442107 is about 12705.9870533540. The cubic root of 161442107 is about 544.5096810517.

Adding to 161442107 its reverse (701244161), we get a palindrome (862686268).

The spelling of 161442107 in words is "one hundred sixty-one million, four hundred forty-two thousand, one hundred seven".