516145242 has 8 divisors (see below), whose sum is σ = 1032290496. Its totient is φ = 172048412.

The previous prime is 516145237. The next prime is 516145261. The reversal of 516145242 is 242541615.

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

516145242 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43012098 + ... + 43012109.

It is an arithmetic number, because the mean of its divisors is an integer number (129036312).

Almost surely, 2^516145242 is an apocalyptic number.

516145242 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.

516145242 is a wasteful number, since it uses less digits than its factorization.

516145242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86024212.

The product of its digits is 9600, while the sum is 30.

The square root of 516145242 is about 22718.8301195286. The cubic root of 516145242 is about 802.1531797801.

Adding to 516145242 its reverse (242541615), we get a palindrome (758686857).

It can be divided in two parts, 5161 and 45242, that added together give a triangular number (50403 = T₃₁₇).

The spelling of 516145242 in words is "five hundred sixteen million, one hundred forty-five thousand, two hundred forty-two".