515572140 has 96 divisors (see below), whose sum is σ = 1538611200. Its totient is φ = 128694016.

The previous prime is 515572103. The next prime is 515572147. The reversal of 515572140 is 41275515.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 515572098 and 515572107.

It is not an unprimeable number, because it can be changed into a prime (515572147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60886 + ... + 68834.

It is an arithmetic number, because the mean of its divisors is an integer number (16027200).

Almost surely, 2^515572140 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 515572140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769305600).

515572140 is an abundant number, since it is smaller than the sum of its proper divisors (1023039060).

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

515572140 is a wasteful number, since it uses less digits than its factorization.

515572140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8031 (or 8029 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 515572140 is about 22706.2136870065. The cubic root of 515572140 is about 801.8561794995.

The spelling of 515572140 in words is "five hundred fifteen million, five hundred seventy-two thousand, one hundred forty".