161325 has 24 divisors (see below), whose sum is σ = 297600. Its totient is φ = 85680.

The previous prime is 161323. The next prime is 161333. The reversal of 161325 is 523161.

It is not a de Polignac number, because 161325 - 2¹ = 161323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161298 and 161307.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 161325.

It is not an unprimeable number, because it can be changed into a prime (161323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 556 + ... + 794.

It is an arithmetic number, because the mean of its divisors is an integer number (12400).

2¹⁶¹³²⁵ is an apocalyptic number.

161325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161325 is a deficient number, since it is larger than the sum of its proper divisors (136275).

161325 is a wasteful number, since it uses less digits than its factorization.

161325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 247 counting only the distinct ones).

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

The square root of 161325 is about 401.6528351699. The cubic root of 161325 is about 54.4377990254.

Adding to 161325 its reverse (523161), we get a palindrome (684486).

It can be divided in two parts, 161 and 325, that multiplied together give a palindrome (52325).

The spelling of 161325 in words is "one hundred sixty-one thousand, three hundred twenty-five".