631033212 has 12 divisors (see below), whose sum is σ = 1472410856. Its totient is φ = 210344400.

The previous prime is 631033189. The next prime is 631033219. The reversal of 631033212 is 212330136.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631033219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26293039 + ... + 26293062.

Almost surely, 2^631033212 is an apocalyptic number.

It is an amenable number.

631033212 is an abundant number, since it is smaller than the sum of its proper divisors (841377644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631033212 is a wasteful number, since it uses less digits than its factorization.

631033212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52586108 (or 52586106 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 631033212 is about 25120.3744398845. The cubic root of 631033212 is about 857.7302742124.

Adding to 631033212 its reverse (212330136), we get a palindrome (843363348).

The spelling of 631033212 in words is "six hundred thirty-one million, thirty-three thousand, two hundred twelve".