635147212 has 72 divisors (see below), whose sum is σ = 1349354160. Its totient is φ = 260507520.

The previous prime is 635147209. The next prime is 635147221. The reversal of 635147212 is 212741536.

It is a super-2 number, since 2×635147212² = 806823961822745888, which contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 744178 + ... + 745030.

It is an arithmetic number, because the mean of its divisors is an integer number (18741030).

Almost surely, 2^635147212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 635147212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674677080).

635147212 is an abundant number, since it is smaller than the sum of its proper divisors (714206948).

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

635147212 is a wasteful number, since it uses less digits than its factorization.

635147212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 1022 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 635147212 is about 25202.1271324466. The cubic root of 635147212 is about 859.5902194136.

Adding to 635147212 its reverse (212741536), we get a palindrome (847888748).

The spelling of 635147212 in words is "six hundred thirty-five million, one hundred forty-seven thousand, two hundred twelve".