63147197 has 8 divisors (see below), whose sum is σ = 68669496. Its totient is φ = 57825792.

The previous prime is 63147173. The next prime is 63147229. The reversal of 63147197 is 79174136.

It can be written as a sum of positive squares in 4 ways, for example, as 30096196 + 33051001 = 5486^2 + 5749^2 .

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 63147197 - 2¹⁰ = 63146173 is a prime.

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 63147197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63147157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49568 + ... + 50825.

It is an arithmetic number, because the mean of its divisors is an integer number (8583687).

Almost surely, 2^63147197 is an apocalyptic number.

It is an amenable number.

63147197 is a deficient number, since it is larger than the sum of its proper divisors (5522299).

63147197 is a wasteful number, since it uses less digits than its factorization.

63147197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100447.

The product of its digits is 31752, while the sum is 38.

The square root of 63147197 is about 7946.5210627041. The cubic root of 63147197 is about 398.2153767240.

The spelling of 63147197 in words is "sixty-three million, one hundred forty-seven thousand, one hundred ninety-seven".