515344142 has 8 divisors (see below), whose sum is σ = 773835336. Its totient is φ = 257399032.

The previous prime is 515344139. The next prime is 515344147. The reversal of 515344142 is 241443515.

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

It is a super-3 number, since 3×515344142³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515344147) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 134153 + ... + 137940.

It is an arithmetic number, because the mean of its divisors is an integer number (96729417).

Almost surely, 2^515344142 is an apocalyptic number.

515344142 is a deficient number, since it is larger than the sum of its proper divisors (258491194).

515344142 is a wasteful number, since it uses less digits than its factorization.

515344142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273042.

The product of its digits is 9600, while the sum is 29.

The square root of 515344142 is about 22701.1925237420. The cubic root of 515344142 is about 801.7379622499.

Adding to 515344142 its reverse (241443515), we get a palindrome (756787657).

The spelling of 515344142 in words is "five hundred fifteen million, three hundred forty-four thousand, one hundred forty-two".