161253 has 24 divisors (see below), whose sum is σ = 262080. Its totient is φ = 95040.

The previous prime is 161237. The next prime is 161263. The reversal of 161253 is 352161.

161253 is a `hidden beast` number, since 1 + 612 + 53 = 666.

It is not a de Polignac number, because 161253 - 2⁴ = 161237 is a prime.

161253 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161233) 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 23 ways as a sum of consecutive naturals, for example, 3913 + ... + 3953.

It is an arithmetic number, because the mean of its divisors is an integer number (10920).

2¹⁶¹²⁵³ is an apocalyptic number.

It is an amenable number.

161253 is a deficient number, since it is larger than the sum of its proper divisors (100827).

161253 is a wasteful number, since it uses less digits than its factorization.

161253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 86 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 161253 is about 401.5631955247. The cubic root of 161253 is about 54.4296992170.

It can be divided in two parts, 161 and 253, that added together give a palindrome (414).

The spelling of 161253 in words is "one hundred sixty-one thousand, two hundred fifty-three".