161422 has 8 divisors (see below), whose sum is σ = 247896. Its totient is φ = 78792.

The previous prime is 161411. The next prime is 161453. The reversal of 161422 is 224161.

161422 = 39² + 40² + ... + 81².

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 161396 and 161405.

It is a congruent number.

It is an unprimeable number.

161422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853 + ... + 1024.

It is an arithmetic number, because the mean of its divisors is an integer number (30987).

2¹⁶¹⁴²² is an apocalyptic number.

161422 is a deficient number, since it is larger than the sum of its proper divisors (86474).

161422 is a wasteful number, since it uses less digits than its factorization.

161422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922.

The product of its digits is 96, while the sum is 16.

The square root of 161422 is about 401.7735680704. The cubic root of 161422 is about 54.4487074577.

Adding to 161422 its reverse (224161), we get a palindrome (385583).

The spelling of 161422 in words is "one hundred sixty-one thousand, four hundred twenty-two".