63722131 has 8 divisors (see below), whose sum is σ = 70297200. Its totient is φ = 57277440.

The previous prime is 63722129. The next prime is 63722179. The reversal of 63722131 is 13122736.

63722131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63722131 - 2¹ = 63722129 is a prime.

It is a super-2 number, since 2×63722131² = 8121019958362322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63722096 and 63722105.

It is not an unprimeable number, because it can be changed into a prime (63722531) 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 7 ways as a sum of consecutive naturals, for example, 31566 + ... + 33523.

It is an arithmetic number, because the mean of its divisors is an integer number (8787150).

Almost surely, 2^63722131 is an apocalyptic number.

63722131 is a deficient number, since it is larger than the sum of its proper divisors (6575069).

63722131 is a wasteful number, since it uses less digits than its factorization.

63722131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65189.

The product of its digits is 1512, while the sum is 25.

The square root of 63722131 is about 7982.6142960812. The cubic root of 63722131 is about 399.4202664284.

Adding to 63722131 its reverse (13122736), we get a palindrome (76844867).

The spelling of 63722131 in words is "sixty-three million, seven hundred twenty-two thousand, one hundred thirty-one".