515140 has 24 divisors (see below), whose sum is σ = 1108800. Its totient is φ = 200928.

The previous prime is 515111. The next prime is 515143. The reversal of 515140 is 41515.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561 + ... + 1159.

It is an arithmetic number, because the mean of its divisors is an integer number (46200).

2⁵¹⁵¹⁴⁰ 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 515140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554400).

515140 is an abundant number, since it is smaller than the sum of its proper divisors (593660).

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

515140 is a wasteful number, since it uses less digits than its factorization.

515140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 515140 is about 717.7325407142. The cubic root of 515140 is about 80.1632084777.

Adding to 515140 its reverse (41515), we get a palindrome (556655).

The spelling of 515140 in words is "five hundred fifteen thousand, one hundred forty".