161824379 has 12 divisors (see below), whose sum is σ = 168402624. Its totient is φ = 155494752.

The previous prime is 161824361. The next prime is 161824393. The reversal of 161824379 is 973428161.

It is not a de Polignac number, because 161824379 - 2¹⁶ = 161758843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161824319) 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 11 ways as a sum of consecutive naturals, for example, 266294 + ... + 266900.

It is an arithmetic number, because the mean of its divisors is an integer number (14033552).

Almost surely, 2^161824379 is an apocalyptic number.

161824379 is a deficient number, since it is larger than the sum of its proper divisors (6578245).

161824379 is an equidigital number, since it uses as much as digits as its factorization.

161824379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 953 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 161824379 is about 12721.0211461187. The cubic root of 161824379 is about 544.9391161682.

The spelling of 161824379 in words is "one hundred sixty-one million, eight hundred twenty-four thousand, three hundred seventy-nine".