161341332 has 24 divisors (see below), whose sum is σ = 385219296. Its totient is φ = 52529568.

The previous prime is 161341321. The next prime is 161341393. The reversal of 161341332 is 233143161.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155823 + ... + 156854.

It is an arithmetic number, because the mean of its divisors is an integer number (16050804).

Almost surely, 2^161341332 is an apocalyptic number.

161341332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161341332 is an abundant number, since it is smaller than the sum of its proper divisors (223877964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161341332 is a wasteful number, since it uses less digits than its factorization.

161341332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312727 (or 312725 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 161341332 is about 12702.0207841115. The cubic root of 161341332 is about 544.3963599658.

Adding to 161341332 its reverse (233143161), we get a palindrome (394484493).

The spelling of 161341332 in words is "one hundred sixty-one million, three hundred forty-one thousand, three hundred thirty-two".