63170081 has 4 divisors (see below), whose sum is σ = 68029332. Its totient is φ = 58310832.

The previous prime is 63170071. The next prime is 63170083. The reversal of 63170081 is 18007136.

63170081 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 4800481 + 58369600 = 2191^2 + 7640^2 .

It is a cyclic number.

It is not a de Polignac number, because 63170081 - 2⁶ = 63170017 is a prime.

It is a super-2 number, since 2×63170081² = 7980918267093122, which contains 22 as substring.

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 63170081.

It is not an unprimeable number, because it can be changed into a prime (63170083) 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, 2429606 + ... + 2429631.

It is an arithmetic number, because the mean of its divisors is an integer number (17007333).

Almost surely, 2^63170081 is an apocalyptic number.

It is an amenable number.

63170081 is a deficient number, since it is larger than the sum of its proper divisors (4859251).

63170081 is a wasteful number, since it uses less digits than its factorization.

63170081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4859250.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 63170081 is about 7947.9608076537. The cubic root of 63170081 is about 398.2634741880.

The spelling of 63170081 in words is "sixty-three million, one hundred seventy thousand, eighty-one".