513131002 has 8 divisors (see below), whose sum is σ = 770536800. Its totient is φ = 256285404.

The previous prime is 513130999. The next prime is 513131023. The reversal of 513131002 is 200131315.

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

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 3 ways as a sum of consecutive naturals, for example, 137752 + ... + 141427.

It is an arithmetic number, because the mean of its divisors is an integer number (96317100).

Almost surely, 2^513131002 is an apocalyptic number.

513131002 is a deficient number, since it is larger than the sum of its proper divisors (257405798).

513131002 is a wasteful number, since it uses less digits than its factorization.

513131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280100.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 513131002 is about 22652.3950610084. The cubic root of 513131002 is about 800.5886303284.

Adding to 513131002 its reverse (200131315), we get a palindrome (713262317).

The spelling of 513131002 in words is "five hundred thirteen million, one hundred thirty-one thousand, two".