163082405 has 4 divisors (see below), whose sum is σ = 195698892. Its totient is φ = 130465920.

The previous prime is 163082393. The next prime is 163082407. The reversal of 163082405 is 504280361.

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

It can be written as a sum of positive squares in 2 ways, for example, as 78552769 + 84529636 = 8863^2 + 9194^2 .

It is not a de Polignac number, because 163082405 - 2⁴ = 163082389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163082407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16308236 + ... + 16308245.

It is an arithmetic number, because the mean of its divisors is an integer number (48924723).

Almost surely, 2^163082405 is an apocalyptic number.

It is an amenable number.

163082405 is a deficient number, since it is larger than the sum of its proper divisors (32616487).

163082405 is an equidigital number, since it uses as much as digits as its factorization.

163082405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32616486.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 163082405 is about 12770.3721558927. The cubic root of 163082405 is about 546.3475951765.

The spelling of 163082405 in words is "one hundred sixty-three million, eighty-two thousand, four hundred five".