161347032 has 256 divisors, whose sum is σ = 570240000. Its totient is φ = 41057280.

The previous prime is 161346989. The next prime is 161347037. The reversal of 161347032 is 230743161.

161347032 is a `hidden beast` number, since 1 + 613 + 47 + 0 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 161346987 and 161347005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161347037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1480194 + ... + 1480302.

It is an arithmetic number, because the mean of its divisors is an integer number (2227500).

Almost surely, 2^161347032 is an apocalyptic number.

161347032 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 161347032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285120000).

161347032 is an abundant number, since it is smaller than the sum of its proper divisors (408892968).

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

161347032 is a wasteful number, since it uses less digits than its factorization.

161347032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 161347032 is about 12702.2451558770. The cubic root of 161347032 is about 544.4027708519.

The spelling of 161347032 in words is "one hundred sixty-one million, three hundred forty-seven thousand, thirty-two".