163012917 has 4 divisors (see below), whose sum is σ = 217350560. Its totient is φ = 108675276.

The previous prime is 163012909. The next prime is 163012919. The reversal of 163012917 is 719210361.

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 163012917 - 2³ = 163012909 is a prime.

It is a super-2 number, since 2×163012917² = 53146422217697778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163012919) 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, 27168817 + ... + 27168822.

It is an arithmetic number, because the mean of its divisors is an integer number (54337640).

Almost surely, 2^163012917 is an apocalyptic number.

It is an amenable number.

163012917 is a deficient number, since it is larger than the sum of its proper divisors (54337643).

163012917 is an equidigital number, since it uses as much as digits as its factorization.

163012917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54337642.

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

The square root of 163012917 is about 12767.6511935438. The cubic root of 163012917 is about 546.2699861602.

The spelling of 163012917 in words is "one hundred sixty-three million, twelve thousand, nine hundred seventeen".