161242332 has 12 divisors (see below), whose sum is σ = 376232136. Its totient is φ = 53747440.

The previous prime is 161242313. The next prime is 161242343. The reversal of 161242332 is 233242161.

It is a tau number, because it is divible by the number of its divisors (12).

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6718419 + ... + 6718442.

It is an arithmetic number, because the mean of its divisors is an integer number (31352678).

Almost surely, 2^161242332 is an apocalyptic number.

161242332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161242332 is an abundant number, since it is smaller than the sum of its proper divisors (214989804).

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

161242332 is a wasteful number, since it uses less digits than its factorization.

161242332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13436868 (or 13436866 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 161242332 is about 12698.1231684056. The cubic root of 161242332 is about 544.2849889030.

Adding to 161242332 its reverse (233242161), we get a palindrome (394484493).

The spelling of 161242332 in words is "one hundred sixty-one million, two hundred forty-two thousand, three hundred thirty-two".