20173112 has 16 divisors (see below), whose sum is σ = 38343840. Its totient is φ = 9948096.

The previous prime is 20173091. The next prime is 20173133. The reversal of 20173112 is 21137102.

It is an interprime number because it is at equal distance from previous prime (20173091) and next prime (20173133).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16688 + ... + 17855.

It is an arithmetic number, because the mean of its divisors is an integer number (2396490).

Almost surely, 2^20173112 is an apocalyptic number.

It is an amenable number.

20173112 is a deficient number, since it is larger than the sum of its proper divisors (18170728).

20173112 is a wasteful number, since it uses less digits than its factorization.

20173112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34622 (or 34618 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 20173112 is about 4491.4487640404. The cubic root of 20173112 is about 272.2226766494. Note that the first 3 decimals are identical.

The spelling of 20173112 in words is "twenty million, one hundred seventy-three thousand, one hundred twelve".