161393352 has 64 divisors (see below), whose sum is σ = 423748800. Its totient is φ = 51152640.

The previous prime is 161393341. The next prime is 161393383. The reversal of 161393352 is 253393161.

161393352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 44902 + ... + 48362.

It is an arithmetic number, because the mean of its divisors is an integer number (6621075).

Almost surely, 2^161393352 is an apocalyptic number.

161393352 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 161393352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211874400).

161393352 is an abundant number, since it is smaller than the sum of its proper divisors (262355448).

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

161393352 is a wasteful number, since it uses less digits than its factorization.

161393352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3566 (or 3562 counting only the distinct ones).

The product of its digits is 14580, while the sum is 33.

The square root of 161393352 is about 12704.0683247533. The cubic root of 161393352 is about 544.4548621389.

It can be divided in two parts, 16139 and 3352, that added together give a palindrome (19491).

The spelling of 161393352 in words is "one hundred sixty-one million, three hundred ninety-three thousand, three hundred fifty-two".