631246122 has 80 divisors (see below), whose sum is σ = 1564625832. Its totient is φ = 188956800.

The previous prime is 631246093. The next prime is 631246123. The reversal of 631246122 is 221642136.

631246122 is a `hidden beast` number, since 631 + 2 + 4 + 6 + 1 + 22 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 630964161 + 281961 = 25119^2 + 531^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (631246123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 73872 + ... + 81972.

Almost surely, 2^631246122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631246122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (782312916).

631246122 is an abundant number, since it is smaller than the sum of its proper divisors (933379710).

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

631246122 is a wasteful number, since it uses less digits than its factorization.

631246122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8165 (or 8156 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 631246122 is about 25124.6118775992. The cubic root of 631246122 is about 857.8267291557.

Adding to 631246122 its reverse (221642136), we get a palindrome (852888258).

It can be divided in two parts, 631 and 246122, that added together give a triangular number (246753 = T₇₀₂).

The spelling of 631246122 in words is "six hundred thirty-one million, two hundred forty-six thousand, one hundred twenty-two".