515345012 has 24 divisors (see below), whose sum is σ = 1109974656. Its totient is φ = 203872608.

The previous prime is 515345011. The next prime is 515345041. The reversal of 515345012 is 210543515.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515345011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707528 + ... + 708255.

It is an arithmetic number, because the mean of its divisors is an integer number (46248944).

Almost surely, 2^515345012 is an apocalyptic number.

515345012 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

515345012 is an abundant number, since it is smaller than the sum of its proper divisors (594629644).

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

515345012 is a wasteful number, since it uses less digits than its factorization.

515345012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415807 (or 1415805 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 515345012 is about 22701.2116857229. The cubic root of 515345012 is about 801.7384134122.

Adding to 515345012 its reverse (210543515), we get a palindrome (725888527).

The spelling of 515345012 in words is "five hundred fifteen million, three hundred forty-five thousand, twelve".