305112 has 16 divisors (see below), whose sum is σ = 762840. Its totient is φ = 101696.

The previous prime is 305111. The next prime is 305113. The reversal of 305112 is 211503.

It is an interprime number because it is at equal distance from previous prime (305111) and next prime (305113).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305111) 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, 6333 + ... + 6380.

2³⁰⁵¹¹² is an apocalyptic number.

It is an amenable number.

305112 is an abundant number, since it is smaller than the sum of its proper divisors (457728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305112 is a wasteful number, since it uses less digits than its factorization.

305112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12722 (or 12718 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 305112 is about 552.3694415878. The cubic root of 305112 is about 67.3213933888.

Adding to 305112 its reverse (211503), we get a palindrome (516615).

The spelling of 305112 in words is "three hundred five thousand, one hundred twelve".