813545013 has 8 divisors (see below), whose sum is σ = 1148534208. Its totient is φ = 510459584.

The previous prime is 813545003. The next prime is 813545017. The reversal of 813545013 is 310545318.

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 813545013 - 2⁸ = 813544757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813545017) 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 7 ways as a sum of consecutive naturals, for example, 7975881 + ... + 7975982.

It is an arithmetic number, because the mean of its divisors is an integer number (143566776).

Almost surely, 2^813545013 is an apocalyptic number.

It is an amenable number.

813545013 is a deficient number, since it is larger than the sum of its proper divisors (334989195).

813545013 is a wasteful number, since it uses less digits than its factorization.

813545013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15951883.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 813545013 is about 28522.7104777930. The cubic root of 813545013 is about 933.5276714228.

The spelling of 813545013 in words is "eight hundred thirteen million, five hundred forty-five thousand, thirteen".