513630841 has 4 divisors (see below), whose sum is σ = 514160784. Its totient is φ = 513100900.

The previous prime is 513630839. The next prime is 513630853. The reversal of 513630841 is 148036315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 513630841 - 2¹ = 513630839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513630881) by changing a digit.

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, 263515 + ... + 265456.

It is an arithmetic number, because the mean of its divisors is an integer number (128540196).

Almost surely, 2^513630841 is an apocalyptic number.

It is an amenable number.

513630841 is a deficient number, since it is larger than the sum of its proper divisors (529943).

513630841 is an equidigital number, since it uses as much as digits as its factorization.

513630841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529942.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 513630841 is about 22663.4251824388. The cubic root of 513630841 is about 800.8484961040.

The spelling of 513630841 in words is "five hundred thirteen million, six hundred thirty thousand, eight hundred forty-one".