161919483 has 8 divisors (see below), whose sum is σ = 235519296. Its totient is φ = 98133000.

The previous prime is 161919469. The next prime is 161919487. The reversal of 161919483 is 384919161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-161919483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161919487) 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 7 ways as a sum of consecutive naturals, for example, 2453293 + ... + 2453358.

It is an arithmetic number, because the mean of its divisors is an integer number (29439912).

Almost surely, 2^161919483 is an apocalyptic number.

161919483 is a deficient number, since it is larger than the sum of its proper divisors (73599813).

161919483 is a wasteful number, since it uses less digits than its factorization.

161919483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906665.

The product of its digits is 46656, while the sum is 42.

The square root of 161919483 is about 12724.7586617586. The cubic root of 161919483 is about 545.0458486244.

The spelling of 161919483 in words is "one hundred sixty-one million, nine hundred nineteen thousand, four hundred eighty-three".