513242742 has 8 divisors (see below), whose sum is σ = 1026485496. Its totient is φ = 171080912.

The previous prime is 513242729. The next prime is 513242759. The reversal of 513242742 is 247242315.

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

513242742 is an admirable number.

It is a super-2 number, since 2×513242742² = 526836224431357128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 42770223 + ... + 42770234.

It is an arithmetic number, because the mean of its divisors is an integer number (128310687).

Almost surely, 2^513242742 is an apocalyptic number.

513242742 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.

513242742 is a wasteful number, since it uses less digits than its factorization.

513242742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85540462.

The product of its digits is 13440, while the sum is 30.

The square root of 513242742 is about 22654.8613326147. The cubic root of 513242742 is about 800.6467384791.

It can be divided in two parts, 5132 and 42742, that added together give a palindrome (47874).

The spelling of 513242742 in words is "five hundred thirteen million, two hundred forty-two thousand, seven hundred forty-two".