513241531 has 8 divisors (see below), whose sum is σ = 569390400. Its totient is φ = 458674440.

The previous prime is 513241513. The next prime is 513241627. The reversal of 513241531 is 135142315.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 513241531 - 2⁹ = 513241019 is a prime.

It is a super-2 number, since 2×513241531² = 526833738286447922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513241496 and 513241505.

It is not an unprimeable number, because it can be changed into a prime (513241501) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 394761 + ... + 396058.

It is an arithmetic number, because the mean of its divisors is an integer number (71173800).

Almost surely, 2^513241531 is an apocalyptic number.

513241531 is a deficient number, since it is larger than the sum of its proper divisors (56148869).

513241531 is a wasteful number, since it uses less digits than its factorization.

513241531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790889.

The product of its digits is 1800, while the sum is 25.

The square root of 513241531 is about 22654.8346054435. The cubic root of 513241531 is about 800.6461087680.

Adding to 513241531 its reverse (135142315), we get a palindrome (648383846).

The spelling of 513241531 in words is "five hundred thirteen million, two hundred forty-one thousand, five hundred thirty-one".