515042142 has 8 divisors (see below), whose sum is σ = 1030084296. Its totient is φ = 171680712.

The previous prime is 515042131. The next prime is 515042147. The reversal of 515042142 is 241240515.

It is a sphenic number, since it is the product of 3 distinct primes.

515042142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515042147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42920173 + ... + 42920184.

It is an arithmetic number, because the mean of its divisors is an integer number (128760537).

Almost surely, 2^515042142 is an apocalyptic number.

515042142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

515042142 is a wasteful number, since it uses less digits than its factorization.

515042142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85840362.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 515042142 is about 22694.5399160239. The cubic root of 515042142 is about 801.5813211780.

Adding to 515042142 its reverse (241240515), we get a palindrome (756282657).

The spelling of 515042142 in words is "five hundred fifteen million, forty-two thousand, one hundred forty-two".