147161 has 4 divisors (see below), whose sum is σ = 168192. Its totient is φ = 126132.

The previous prime is 147151. The next prime is 147163. The reversal of 147161 is 161741.

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 147161 - 2⁶ = 147097 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147161.

It is not an unprimeable number, because it can be changed into a prime (147163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10505 + ... + 10518.

It is an arithmetic number, because the mean of its divisors is an integer number (42048).

2¹⁴⁷¹⁶¹ is an apocalyptic number.

It is an amenable number.

147161 is a deficient number, since it is larger than the sum of its proper divisors (21031).

147161 is an equidigital number, since it uses as much as digits as its factorization.

147161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21030.

The product of its digits is 168, while the sum is 20.

The square root of 147161 is about 383.6156931097. The cubic root of 147161 is about 52.7955813949.

The spelling of 147161 in words is "one hundred forty-seven thousand, one hundred sixty-one".