512345112 has 16 divisors (see below), whose sum is σ = 1280862840. Its totient is φ = 170781696.

The previous prime is 512345111. The next prime is 512345123. The reversal of 512345112 is 211543215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 21347713 = 512345112 / (5 + 1 + 2 + 3 + 4 + 5 + 1 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512345111) 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, 10673833 + ... + 10673880.

Almost surely, 2^512345112 is an apocalyptic number.

It is an amenable number.

512345112 is an abundant number, since it is smaller than the sum of its proper divisors (768517728).

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

512345112 is a wasteful number, since it uses less digits than its factorization.

512345112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21347722 (or 21347718 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 512345112 is about 22635.0416831955. The cubic root of 512345112 is about 800.1797054627.

Adding to 512345112 its reverse (211543215), we get a palindrome (723888327).

The spelling of 512345112 in words is "five hundred twelve million, three hundred forty-five thousand, one hundred twelve".