63121712 has 10 divisors (see below), whose sum is σ = 122298348. Its totient is φ = 31560848.

The previous prime is 63121703. The next prime is 63121717. The reversal of 63121712 is 21712136.

It is not an unprimeable number, because it can be changed into a prime (63121717) 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 as a sum of consecutive naturals, namely, 1972538 + ... + 1972569.

Almost surely, 2^63121712 is an apocalyptic number.

It is an amenable number.

63121712 is a deficient number, since it is larger than the sum of its proper divisors (59176636).

63121712 is a wasteful number, since it uses less digits than its factorization.

63121712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3945115 (or 3945109 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 63121712 is about 7944.9173689850. The cubic root of 63121712 is about 398.1617988144.

Adding to 63121712 its reverse (21712136), we get a palindrome (84833848).

The spelling of 63121712 in words is "sixty-three million, one hundred twenty-one thousand, seven hundred twelve".