163112709 has 4 divisors (see below), whose sum is σ = 217483616. Its totient is φ = 108741804.

The previous prime is 163112683. The next prime is 163112713. The reversal of 163112709 is 907211361.

163112709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 163112709 - 2⁹ = 163112197 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 (163112759) 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, 27185449 + ... + 27185454.

It is an arithmetic number, because the mean of its divisors is an integer number (54370904).

Almost surely, 2^163112709 is an apocalyptic number.

It is an amenable number.

163112709 is a deficient number, since it is larger than the sum of its proper divisors (54370907).

163112709 is an equidigital number, since it uses as much as digits as its factorization.

163112709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54370906.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 163112709 is about 12771.5585971329. The cubic root of 163112709 is about 546.3814338814.

The spelling of 163112709 in words is "one hundred sixty-three million, one hundred twelve thousand, seven hundred nine".