161037912 has 96 divisors (see below), whose sum is σ = 481111920. Its totient is φ = 44755200.

The previous prime is 161037911. The next prime is 161037937. The reversal of 161037912 is 219730161.

161037912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161037912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161037911) 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, 41662 + ... + 45362.

Almost surely, 2^161037912 is an apocalyptic number.

161037912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161037912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240555960).

161037912 is an abundant number, since it is smaller than the sum of its proper divisors (320074008).

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

161037912 is a wasteful number, since it uses less digits than its factorization.

161037912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761 (or 3750 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 161037912 is about 12690.0713945982. The cubic root of 161037912 is about 544.0548802044.

The spelling of 161037912 in words is "one hundred sixty-one million, thirty-seven thousand, nine hundred twelve".