161349 has 4 divisors (see below), whose sum is σ = 215136. Its totient is φ = 107564.

The previous prime is 161341. The next prime is 161363. The reversal of 161349 is 943161.

161349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 161349 - 2³ = 161341 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26889 + ... + 26894.

It is an arithmetic number, because the mean of its divisors is an integer number (53784).

2¹⁶¹³⁴⁹ is an apocalyptic number.

It is an amenable number.

161349 is a deficient number, since it is larger than the sum of its proper divisors (53787).

161349 is an equidigital number, since it uses as much as digits as its factorization.

161349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53786.

The product of its digits is 648, while the sum is 24.

The square root of 161349 is about 401.6827106063. The cubic root of 161349 is about 54.4404984260.

The spelling of 161349 in words is "one hundred sixty-one thousand, three hundred forty-nine".