515679142 has 16 divisors (see below), whose sum is σ = 850284864. Its totient is φ = 232609000.

The previous prime is 515679137. The next prime is 515679167. The reversal of 515679142 is 241976515.

It is a junction number, because it is equal to n+sod(n) for n = 515679095 and 515679104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86584 + ... + 92347.

It is an arithmetic number, because the mean of its divisors is an integer number (53142804).

Almost surely, 2^515679142 is an apocalyptic number.

515679142 is a deficient number, since it is larger than the sum of its proper divisors (334605722).

515679142 is a wasteful number, since it uses less digits than its factorization.

515679142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179075.

The product of its digits is 75600, while the sum is 40.

The square root of 515679142 is about 22708.5697920411. The cubic root of 515679142 is about 801.9116481548.

The spelling of 515679142 in words is "five hundred fifteen million, six hundred seventy-nine thousand, one hundred forty-two".