1515512012 has 12 divisors (see below), whose sum is σ = 3031024080. Its totient is φ = 649505136.

The previous prime is 1515512003. The next prime is 1515512017. The reversal of 1515512012 is 2102155151.

1515512012 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1515512017) 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, 27062687 + ... + 27062742.

It is an arithmetic number, because the mean of its divisors is an integer number (252585340).

Almost surely, 2^1515512012 is an apocalyptic number.

It is an amenable number.

1515512012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1515512012 is a wasteful number, since it uses less digits than its factorization.

1515512012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54125440 (or 54125438 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 1515512012 is about 38929.5775985304. The cubic root of 1515512012 is about 1148.6466782289.

Adding to 1515512012 its reverse (2102155151), we get a palindrome (3617667163).

The spelling of 1515512012 in words is "one billion, five hundred fifteen million, five hundred twelve thousand, twelve".