515142 has 12 divisors (see below), whose sum is σ = 1116180. Its totient is φ = 171708.

The previous prime is 515111. The next prime is 515143. The reversal of 515142 is 241515.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 28619 = 515142 / (5 + 1 + 5 + 1 + 4 + 2).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 515142.

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

515142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14292 + ... + 14327.

It is an arithmetic number, because the mean of its divisors is an integer number (93015).

2⁵¹⁵¹⁴² is an apocalyptic number.

515142 is an abundant number, since it is smaller than the sum of its proper divisors (601038).

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

515142 is a wasteful number, since it uses less digits than its factorization.

515142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28627 (or 28624 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 515142 is about 717.7339339895. The cubic root of 515142 is about 80.1633122205.

Adding to 515142 its reverse (241515), we get a palindrome (756657).

The spelling of 515142 in words is "five hundred fifteen thousand, one hundred forty-two".