163918162 has 4 divisors (see below), whose sum is σ = 245877246. Its totient is φ = 81959080.

The previous prime is 163918133. The next prime is 163918189. The reversal of 163918162 is 261819361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 261819361 = 193 ⋅1356577.

It can be written as a sum of positive squares in only one way, i.e., 162333081 + 1585081 = 12741^2 + 1259^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40979539 + ... + 40979542.

Almost surely, 2^163918162 is an apocalyptic number.

163918162 is a deficient number, since it is larger than the sum of its proper divisors (81959084).

163918162 is an equidigital number, since it uses as much as digits as its factorization.

163918162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81959083.

The product of its digits is 15552, while the sum is 37.

The square root of 163918162 is about 12803.0528390693. The cubic root of 163918162 is about 547.2793041681.

The spelling of 163918162 in words is "one hundred sixty-three million, nine hundred eighteen thousand, one hundred sixty-two".