63212231 has 4 divisors (see below), whose sum is σ = 63440712. Its totient is φ = 62983752.

The previous prime is 63212209. The next prime is 63212251. The reversal of 63212231 is 13221236.

It is a happy number.

63212231 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 is a cyclic number.

It is not a de Polignac number, because 63212231 - 2¹⁸ = 62950087 is a prime.

It is a super-2 number, since 2×63212231² = 7991572295994722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63212251) 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, 113825 + ... + 114378.

It is an arithmetic number, because the mean of its divisors is an integer number (15860178).

Almost surely, 2^63212231 is an apocalyptic number.

63212231 is a deficient number, since it is larger than the sum of its proper divisors (228481).

63212231 is a wasteful number, since it uses less digits than its factorization.

63212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228480.

The product of its digits is 432, while the sum is 20.

The square root of 63212231 is about 7950.6119890232. The cubic root of 63212231 is about 398.3520344311.

Adding to 63212231 its reverse (13221236), we get a palindrome (76433467).

The spelling of 63212231 in words is "sixty-three million, two hundred twelve thousand, two hundred thirty-one".