132161225 has 24 divisors (see below), whose sum is σ = 192362688. Its totient is φ = 88171200.

The previous prime is 132161221. The next prime is 132161251. The reversal of 132161225 is 522161231.

It is not a de Polignac number, because 132161225 - 2² = 132161221 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 132161225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132161221) 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, 3731 + ... + 16680.

It is an arithmetic number, because the mean of its divisors is an integer number (8015112).

Almost surely, 2^132161225 is an apocalyptic number.

It is an amenable number.

132161225 is a deficient number, since it is larger than the sum of its proper divisors (60201463).

132161225 is a wasteful number, since it uses less digits than its factorization.

132161225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20465 (or 20460 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 132161225 is about 11496.1395694381. The cubic root of 132161225 is about 509.3715506560.

It can be divided in two parts, 13216 and 1225, that added together give a palindrome (14441).

The spelling of 132161225 in words is "one hundred thirty-two million, one hundred sixty-one thousand, two hundred twenty-five".