913288513 has 4 divisors (see below), whose sum is σ = 915041988. Its totient is φ = 911535040.

The previous prime is 913288499. The next prime is 913288517. The reversal of 913288513 is 315882319.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 382124304 + 531164209 = 19548^2 + 23047^2 .

It is a cyclic number.

It is not a de Polignac number, because 913288513 - 2²⁵ = 879734081 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913288517) 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, 875956 + ... + 876997.

It is an arithmetic number, because the mean of its divisors is an integer number (228760497).

Almost surely, 2^913288513 is an apocalyptic number.

It is an amenable number.

913288513 is a deficient number, since it is larger than the sum of its proper divisors (1753475).

913288513 is a wasteful number, since it uses less digits than its factorization.

913288513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753474.

The product of its digits is 51840, while the sum is 40.

The square root of 913288513 is about 30220.6636757037. The cubic root of 913288513 is about 970.2180092405.

The spelling of 913288513 in words is "nine hundred thirteen million, two hundred eighty-eight thousand, five hundred thirteen".