161441412 has 48 divisors (see below), whose sum is σ = 413136192. Its totient is φ = 48660480.

The previous prime is 161441407. The next prime is 161441429. The reversal of 161441412 is 214144161.

161441412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22308 + ... + 28644.

It is an arithmetic number, because the mean of its divisors is an integer number (8607004).

Almost surely, 2^161441412 is an apocalyptic number.

161441412 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 161441412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206568096).

161441412 is an abundant number, since it is smaller than the sum of its proper divisors (251694780).

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

161441412 is a wasteful number, since it uses less digits than its factorization.

161441412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6548 (or 6546 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 161441412 is about 12705.9597040129. The cubic root of 161441412 is about 544.5088996885.

Adding to 161441412 its reverse (214144161), we get a palindrome (375585573).

The spelling of 161441412 in words is "one hundred sixty-one million, four hundred forty-one thousand, four hundred twelve".