513134441 has 4 divisors (see below), whose sum is σ = 520793232. Its totient is φ = 505475652.

The previous prime is 513134429. The next prime is 513134471. The reversal of 513134441 is 144431315.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-513134441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 513134441.

It is not an unprimeable number, because it can be changed into a prime (513134411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3829295 + ... + 3829428.

It is an arithmetic number, because the mean of its divisors is an integer number (130198308).

Almost surely, 2^513134441 is an apocalyptic number.

It is an amenable number.

513134441 is a deficient number, since it is larger than the sum of its proper divisors (7658791).

513134441 is an equidigital number, since it uses as much as digits as its factorization.

513134441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7658790.

The product of its digits is 2880, while the sum is 26.

The square root of 513134441 is about 22652.4709689694. The cubic root of 513134441 is about 800.5904188373.

Adding to 513134441 its reverse (144431315), we get a palindrome (657565756).

The spelling of 513134441 in words is "five hundred thirteen million, one hundred thirty-four thousand, four hundred forty-one".