161928132 has 48 divisors (see below), whose sum is σ = 389858112. Its totient is φ = 52272000.

The previous prime is 161928131. The next prime is 161928133. The reversal of 161928132 is 231829161.

161928132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161928131) and next prime (161928133).

It is a junction number, because it is equal to n+sod(n) for n = 161928093 and 161928102.

It is not an unprimeable number, because it can be changed into a prime (161928131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110718 + ... + 112170.

It is an arithmetic number, because the mean of its divisors is an integer number (8122044).

Almost surely, 2^161928132 is an apocalyptic number.

161928132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161928132 is an abundant number, since it is smaller than the sum of its proper divisors (227929980).

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

161928132 is a wasteful number, since it uses less digits than its factorization.

161928132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748 (or 1746 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 161928132 is about 12725.0985064949. The cubic root of 161928132 is about 545.0555530724.

The spelling of 161928132 in words is "one hundred sixty-one million, nine hundred twenty-eight thousand, one hundred thirty-two".