161208 has 24 divisors (see below), whose sum is σ = 436800. Its totient is φ = 53712.

The previous prime is 161201. The next prime is 161221. The reversal of 161208 is 802161.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161201) by changing a digit.

161208 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 5 ways as a sum of consecutive naturals, for example, 1048 + ... + 1191.

It is an arithmetic number, because the mean of its divisors is an integer number (18200).

2¹⁶¹²⁰⁸ is an apocalyptic number.

161208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

161208 is an abundant number, since it is smaller than the sum of its proper divisors (275592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161208 is a wasteful number, since it uses less digits than its factorization.

161208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251 (or 2244 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 161208 is about 401.5071605837. The cubic root of 161208 is about 54.4246356123.

Adding to 161208 its reverse (802161), we get a palindrome (963369).

The spelling of 161208 in words is "one hundred sixty-one thousand, two hundred eight".