161080732 has 12 divisors (see below), whose sum is σ = 291611880. Its totient is φ = 77763056.

The previous prime is 161080723. The next prime is 161080739. The reversal of 161080732 is 237080161.

It is a super-3 number, since 3×161080732³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161080732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161080739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694198 + ... + 694429.

It is an arithmetic number, because the mean of its divisors is an integer number (24300990).

Almost surely, 2^161080732 is an apocalyptic number.

It is an amenable number.

161080732 is a deficient number, since it is larger than the sum of its proper divisors (130531148).

161080732 is a wasteful number, since it uses less digits than its factorization.

161080732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388660 (or 1388658 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 161080732 is about 12691.7584282084. The cubic root of 161080732 is about 544.1030973502.

The spelling of 161080732 in words is "one hundred sixty-one million, eighty thousand, seven hundred thirty-two".