63130312 has 32 divisors (see below), whose sum is σ = 142401600. Its totient is φ = 25631424.

The previous prime is 63130307. The next prime is 63130313. The reversal of 63130312 is 21303136.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 63130312.

It is not an unprimeable number, because it can be changed into a prime (63130313) 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, 28603 + ... + 30730.

It is an arithmetic number, because the mean of its divisors is an integer number (4450050).

Almost surely, 2^63130312 is an apocalyptic number.

It is an amenable number.

63130312 is an abundant number, since it is smaller than the sum of its proper divisors (79271288).

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

63130312 is a wasteful number, since it uses less digits than its factorization.

63130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59365 (or 59361 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 63130312 is about 7945.4585770741. The cubic root of 63130312 is about 398.1798804743.

Adding to 63130312 its reverse (21303136), we get a palindrome (84433448).

The spelling of 63130312 in words is "sixty-three million, one hundred thirty thousand, three hundred twelve".