161032325 has 24 divisors (see below), whose sum is σ = 207120672. Its totient is φ = 124096320.

The previous prime is 161032307. The next prime is 161032337. The reversal of 161032325 is 523230161.

It is not a de Polignac number, because 161032325 - 2²⁶ = 93923461 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 161032325.

It is a congruent number.

It is an unprimeable number.

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, 98162 + ... + 99788.

It is an arithmetic number, because the mean of its divisors is an integer number (8630028).

Almost surely, 2^161032325 is an apocalyptic number.

It is an amenable number.

161032325 is a deficient number, since it is larger than the sum of its proper divisors (46088347).

161032325 is a wasteful number, since it uses less digits than its factorization.

161032325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781 (or 1776 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 161032325 is about 12689.8512599636. The cubic root of 161032325 is about 544.0485883738.

Adding to 161032325 its reverse (523230161), we get a palindrome (684262486).

The spelling of 161032325 in words is "one hundred sixty-one million, thirty-two thousand, three hundred twenty-five".