161963382 has 32 divisors (see below), whose sum is σ = 370870272. Its totient is φ = 46191744.

The previous prime is 161963371. The next prime is 161963383. The reversal of 161963382 is 283369161.

It is a self number, because there is not a number n which added to its sum of digits gives 161963382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161963383) 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 15 ways as a sum of consecutive naturals, for example, 22318 + ... + 28670.

It is an arithmetic number, because the mean of its divisors is an integer number (11589696).

Almost surely, 2^161963382 is an apocalyptic number.

161963382 is an abundant number, since it is smaller than the sum of its proper divisors (208906890).

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

161963382 is a wasteful number, since it uses less digits than its factorization.

161963382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972.

The product of its digits is 46656, while the sum is 39.

The square root of 161963382 is about 12726.4834891654. The cubic root of 161963382 is about 545.0951010991.

The spelling of 161963382 in words is "one hundred sixty-one million, nine hundred sixty-three thousand, three hundred eighty-two".