161483578 has 16 divisors (see below), whose sum is σ = 257463360. Its totient is φ = 75699136.

The previous prime is 161483551. The next prime is 161483591. The reversal of 161483578 is 875384161.

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, 88 + ... + 17971.

It is an arithmetic number, because the mean of its divisors is an integer number (16091460).

Almost surely, 2^161483578 is an apocalyptic number.

161483578 is a deficient number, since it is larger than the sum of its proper divisors (95979782).

161483578 is a wasteful number, since it uses less digits than its factorization.

161483578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18341.

The product of its digits is 161280, while the sum is 43.

The square root of 161483578 is about 12707.6188957649. The cubic root of 161483578 is about 544.5563013297.

The spelling of 161483578 in words is "one hundred sixty-one million, four hundred eighty-three thousand, five hundred seventy-eight".