515006140 has 24 divisors (see below), whose sum is σ = 1179832752. Its totient is φ = 187274880.

The previous prime is 515006117. The next prime is 515006147. The reversal of 515006140 is 41600515.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515006147) 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, 1170249 + ... + 1170688.

It is an arithmetic number, because the mean of its divisors is an integer number (49159698).

Almost surely, 2^515006140 is an apocalyptic number.

It is an amenable number.

515006140 is an abundant number, since it is smaller than the sum of its proper divisors (664826612).

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

515006140 is a wasteful number, since it uses less digits than its factorization.

515006140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340957 (or 2340955 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 515006140 is about 22693.7467157805. The cubic root of 515006140 is about 801.5626436105.

Adding to 515006140 its reverse (41600515), we get a palindrome (556606655).

The spelling of 515006140 in words is "five hundred fifteen million, six thousand, one hundred forty".