63228191 has 16 divisors (see below), whose sum is σ = 70160160. Its totient is φ = 56609280.

The previous prime is 63228169. The next prime is 63228197. The reversal of 63228191 is 19182236.

It is not a de Polignac number, because 63228191 - 2¹⁰ = 63227167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63228197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166640 + ... + 167018.

It is an arithmetic number, because the mean of its divisors is an integer number (4385010).

Almost surely, 2^63228191 is an apocalyptic number.

63228191 is a deficient number, since it is larger than the sum of its proper divisors (6931969).

63228191 is a wasteful number, since it uses less digits than its factorization.

63228191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746.

The product of its digits is 5184, while the sum is 32.

The square root of 63228191 is about 7951.6156219978. The cubic root of 63228191 is about 398.3855572867.

The spelling of 63228191 in words is "sixty-three million, two hundred twenty-eight thousand, one hundred ninety-one".