163941943 has 8 divisors (see below), whose sum is σ = 181877760. Its totient is φ = 146511480.

The previous prime is 163941941. The next prime is 163941949. The reversal of 163941943 is 349149361.

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

It is a cyclic number.

It is not a de Polignac number, because 163941943 - 2¹ = 163941941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163941896 and 163941905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163941941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125655 + ... + 126952.

It is an arithmetic number, because the mean of its divisors is an integer number (22734720).

Almost surely, 2^163941943 is an apocalyptic number.

163941943 is a deficient number, since it is larger than the sum of its proper divisors (17935817).

163941943 is a wasteful number, since it uses less digits than its factorization.

163941943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252677.

The product of its digits is 69984, while the sum is 40.

The square root of 163941943 is about 12803.9815291963. The cubic root of 163941943 is about 547.3057690406.

The spelling of 163941943 in words is "one hundred sixty-three million, nine hundred forty-one thousand, nine hundred forty-three".