161112032 has 12 divisors (see below), whose sum is σ = 317189376. Its totient is φ = 80556000.

The previous prime is 161111957. The next prime is 161112037. The reversal of 161112032 is 230211161.

It is a self number, because there is not a number n which added to its sum of digits gives 161112032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161112037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2517344 + ... + 2517407.

It is an arithmetic number, because the mean of its divisors is an integer number (26432448).

Almost surely, 2^161112032 is an apocalyptic number.

It is an amenable number.

161112032 is a deficient number, since it is larger than the sum of its proper divisors (156077344).

161112032 is an equidigital number, since it uses as much as digits as its factorization.

161112032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5034761 (or 5034753 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 161112032 is about 12692.9914519785. The cubic root of 161112032 is about 544.1383370791.

Adding to 161112032 its reverse (230211161), we get a palindrome (391323193).

The spelling of 161112032 in words is "one hundred sixty-one million, one hundred twelve thousand, thirty-two".