161342 has 4 divisors (see below), whose sum is σ = 242016. Its totient is φ = 80670.

The previous prime is 161341. The next prime is 161363. The reversal of 161342 is 243161.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 161342.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40334 + ... + 40337.

It is an arithmetic number, because the mean of its divisors is an integer number (60504).

2¹⁶¹³⁴² is an apocalyptic number.

161342 is a deficient number, since it is larger than the sum of its proper divisors (80674).

161342 is an equidigital number, since it uses as much as digits as its factorization.

161342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80673.

The product of its digits is 144, while the sum is 17.

The square root of 161342 is about 401.6739971669. The cubic root of 161342 is about 54.4397111284.

The spelling of 161342 in words is "one hundred sixty-one thousand, three hundred forty-two".