63143231 has 8 divisors (see below), whose sum is σ = 64830144. Its totient is φ = 61470720.

The previous prime is 63143207. The next prime is 63143261. The reversal of 63143231 is 13234136.

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 63143231 - 2¹⁸ = 62881087 is a prime.

It is a super-2 number, since 2×63143231² = 7974135242238722, 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 = 63143197 and 63143206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63143261) 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, 5591 + ... + 12551.

It is an arithmetic number, because the mean of its divisors is an integer number (8103768).

Almost surely, 2^63143231 is an apocalyptic number.

63143231 is a deficient number, since it is larger than the sum of its proper divisors (1686913).

63143231 is a wasteful number, since it uses less digits than its factorization.

63143231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201.

The product of its digits is 1296, while the sum is 23.

The square root of 63143231 is about 7946.2715156229. The cubic root of 63143231 is about 398.2070398259.

Adding to 63143231 its reverse (13234136), we get a palindrome (76377367).

The spelling of 63143231 in words is "sixty-three million, one hundred forty-three thousand, two hundred thirty-one".