515240112 has 80 divisors (see below), whose sum is σ = 1422908928. Its totient is φ = 160258560.

The previous prime is 515240069. The next prime is 515240171. The reversal of 515240112 is 211042515.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39573 + ... + 50955.

Almost surely, 2^515240112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515240112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711454464).

515240112 is an abundant number, since it is smaller than the sum of its proper divisors (907668816).

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

515240112 is a wasteful number, since it uses less digits than its factorization.

515240112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11458 (or 11452 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 515240112 is about 22698.9011187767. The cubic root of 515240112 is about 801.6840109798.

Adding to 515240112 its reverse (211042515), we get a palindrome (726282627).

The spelling of 515240112 in words is "five hundred fifteen million, two hundred forty thousand, one hundred twelve".