513124142 has 4 divisors (see below), whose sum is σ = 769686216. Its totient is φ = 256562070.

The previous prime is 513124133. The next prime is 513124151. The reversal of 513124142 is 241421315.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (513124133) and next prime (513124151).

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 as a sum of consecutive naturals, namely, 128281034 + ... + 128281037.

It is an arithmetic number, because the mean of its divisors is an integer number (192421554).

Almost surely, 2^513124142 is an apocalyptic number.

513124142 is a deficient number, since it is larger than the sum of its proper divisors (256562074).

513124142 is a wasteful number, since it uses less digits than its factorization.

513124142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256562073.

The product of its digits is 960, while the sum is 23.

The square root of 513124142 is about 22652.2436416351. The cubic root of 513124142 is about 800.5850626478.

Adding to 513124142 its reverse (241421315), we get a palindrome (754545457).

The spelling of 513124142 in words is "five hundred thirteen million, one hundred twenty-four thousand, one hundred forty-two".