161153 has 4 divisors (see below), whose sum is σ = 166740. Its totient is φ = 155568.

The previous prime is 161149. The next prime is 161159. The reversal of 161153 is 351161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351161 = 29 ⋅12109.

It can be written as a sum of positive squares in 2 ways, for example, as 123904 + 37249 = 352^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 161153 - 2² = 161149 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 161153.

It is not an unprimeable number, because it can be changed into a prime (161159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2750 + ... + 2807.

It is an arithmetic number, because the mean of its divisors is an integer number (41685).

2¹⁶¹¹⁵³ is an apocalyptic number.

It is an amenable number.

161153 is a deficient number, since it is larger than the sum of its proper divisors (5587).

161153 is an equidigital number, since it uses as much as digits as its factorization.

161153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586.

The product of its digits is 90, while the sum is 17.

The square root of 161153 is about 401.4386628116. The cubic root of 161153 is about 54.4184454823.

The spelling of 161153 in words is "one hundred sixty-one thousand, one hundred fifty-three".