161942 has 16 divisors (see below), whose sum is σ = 281232. Its totient is φ = 69120.

The previous prime is 161923. The next prime is 161947. The reversal of 161942 is 249161.

It is a happy number.

161942 is nontrivially palindromic in base 14.

161942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161942² = 52450422728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158 + ... + 590.

It is an arithmetic number, because the mean of its divisors is an integer number (17577).

2¹⁶¹⁹⁴² is an apocalyptic number.

161942 is a deficient number, since it is larger than the sum of its proper divisors (119290).

161942 is a wasteful number, since it uses less digits than its factorization.

161942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

The product of its digits is 432, while the sum is 23.

The square root of 161942 is about 402.4201784205. The cubic root of 161942 is about 54.5071112680.

It can be divided in two parts, 1619 and 42, that added together give a palindrome (1661).

The spelling of 161942 in words is "one hundred sixty-one thousand, nine hundred forty-two".