161335 has 8 divisors (see below), whose sum is σ = 198576. Its totient is φ = 125760.

The previous prime is 161333. The next prime is 161339. The reversal of 161335 is 533161.

161335 is nontrivially palindromic in base 13.

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

It is not a de Polignac number, because 161335 - 2¹ = 161333 is a prime.

It is a Duffinian number.

161335 is an undulating number in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161333) 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 7 ways as a sum of consecutive naturals, for example, 189 + ... + 598.

It is an arithmetic number, because the mean of its divisors is an integer number (24822).

2¹⁶¹³³⁵ is an apocalyptic number.

161335 is a deficient number, since it is larger than the sum of its proper divisors (37241).

161335 is an equidigital number, since it uses as much as digits as its factorization.

161335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its digits is 270, while the sum is 19.

The square root of 161335 is about 401.6652835384. The cubic root of 161335 is about 54.4389238082.

Adding to 161335 its reverse (533161), we get a palindrome (694496).

It can be divided in two parts, 161 and 335, that multiplied together give a palindrome (53935).

The spelling of 161335 in words is "one hundred sixty-one thousand, three hundred thirty-five".