163802943 has 24 divisors (see below), whose sum is σ = 242543808. Its totient is φ = 106478592.

The previous prime is 163802929. The next prime is 163803023. The reversal of 163802943 is 349208361.

It is not a de Polignac number, because 163802943 - 2⁸ = 163802687 is a prime.

It is a super-2 number, since 2×163802943² = 53662808270922498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163802898 and 163802907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163802923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148771 + ... + 149867.

It is an arithmetic number, because the mean of its divisors is an integer number (10105992).

Almost surely, 2^163802943 is an apocalyptic number.

163802943 is a deficient number, since it is larger than the sum of its proper divisors (78740865).

163802943 is a wasteful number, since it uses less digits than its factorization.

163802943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 163802943 is about 12798.5523790779. The cubic root of 163802943 is about 547.1510455429.

The spelling of 163802943 in words is "one hundred sixty-three million, eight hundred two thousand, nine hundred forty-three".