63165313 has 4 divisors (see below), whose sum is σ = 63223380. Its totient is φ = 63107248.

The previous prime is 63165307. The next prime is 63165331. The reversal of 63165313 is 31356136.

63165313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3211264 + 59954049 = 1792^2 + 7743^2 .

It is a cyclic number.

It is not a de Polignac number, because 63165313 - 2⁵ = 63165281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63465313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27370 + ... + 29587.

It is an arithmetic number, because the mean of its divisors is an integer number (15805845).

Almost surely, 2^63165313 is an apocalyptic number.

It is an amenable number.

63165313 is a deficient number, since it is larger than the sum of its proper divisors (58067).

63165313 is a wasteful number, since it uses less digits than its factorization.

63165313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58066.

The product of its digits is 4860, while the sum is 28.

The square root of 63165313 is about 7947.6608508416. The cubic root of 63165313 is about 398.2534537902.

The spelling of 63165313 in words is "sixty-three million, one hundred sixty-five thousand, three hundred thirteen".