161382930 has 16 divisors (see below), whose sum is σ = 387319104. Its totient is φ = 43035440.

The previous prime is 161382919. The next prime is 161382953. The reversal of 161382930 is 39283161.

It is a junction number, because it is equal to n+sod(n) for n = 161382891 and 161382900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2689686 + ... + 2689745.

It is an arithmetic number, because the mean of its divisors is an integer number (24207444).

Almost surely, 2^161382930 is an apocalyptic number.

161382930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161382930 is an abundant number, since it is smaller than the sum of its proper divisors (225936174).

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

161382930 is a wasteful number, since it uses less digits than its factorization.

161382930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379441.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 161382930 is about 12703.6581345690. The cubic root of 161382930 is about 544.4431424684.

The spelling of 161382930 in words is "one hundred sixty-one million, three hundred eighty-two thousand, nine hundred thirty".