515134020 has 96 divisors (see below), whose sum is σ = 1482155136. Its totient is φ = 133632000.

The previous prime is 515134019. The next prime is 515134031. The reversal of 515134020 is 20431515.

It is a super-2 number, since 2×515134020² = 530726117122720800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354295 + ... + 355745.

It is an arithmetic number, because the mean of its divisors is an integer number (15439116).

Almost surely, 2^515134020 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 515134020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741077568).

515134020 is an abundant number, since it is smaller than the sum of its proper divisors (967021116).

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

515134020 is a wasteful number, since it uses less digits than its factorization.

515134020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 515134020 is about 22696.5640571431. The cubic root of 515134020 is about 801.6289828505.

Adding to 515134020 its reverse (20431515), we get a palindrome (535565535).

The spelling of 515134020 in words is "five hundred fifteen million, one hundred thirty-four thousand, twenty".