163379543 has 4 divisors (see below), whose sum is σ = 164476200. Its totient is φ = 162282888.

The previous prime is 163379521. The next prime is 163379561. The reversal of 163379543 is 345973361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163379543 - 2¹⁰ = 163378519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163379543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163379563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548105 + ... + 548402.

It is an arithmetic number, because the mean of its divisors is an integer number (41119050).

Almost surely, 2^163379543 is an apocalyptic number.

163379543 is a deficient number, since it is larger than the sum of its proper divisors (1096657).

163379543 is a wasteful number, since it uses less digits than its factorization.

163379543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096656.

The product of its digits is 204120, while the sum is 41.

The square root of 163379543 is about 12782.0007432326. Note that the first 3 decimals coincide. The cubic root of 163379543 is about 546.6792110364.

The spelling of 163379543 in words is "one hundred sixty-three million, three hundred seventy-nine thousand, five hundred forty-three".