513134897 has 4 divisors (see below), whose sum is σ = 559783536. Its totient is φ = 466486260.

The previous prime is 513134863. The next prime is 513134911. The reversal of 513134897 is 798431315.

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 513134897 - 2¹² = 513130801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513134597) 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, 23324303 + ... + 23324324.

It is an arithmetic number, because the mean of its divisors is an integer number (139945884).

Almost surely, 2^513134897 is an apocalyptic number.

It is an amenable number.

513134897 is a deficient number, since it is larger than the sum of its proper divisors (46648639).

513134897 is a wasteful number, since it uses less digits than its factorization.

513134897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46648638.

The product of its digits is 90720, while the sum is 41.

The square root of 513134897 is about 22652.4810340943. The cubic root of 513134897 is about 800.5906559871.

The spelling of 513134897 in words is "five hundred thirteen million, one hundred thirty-four thousand, eight hundred ninety-seven".