63875121 has 8 divisors (see below), whose sum is σ = 85332384. Its totient is φ = 42500640.

The previous prime is 63875107. The next prime is 63875153. The reversal of 63875121 is 12157836.

63875121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63875121 - 2⁹ = 63874609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63875191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18871 + ... + 21996.

It is an arithmetic number, because the mean of its divisors is an integer number (10666548).

Almost surely, 2^63875121 is an apocalyptic number.

It is an amenable number.

63875121 is a deficient number, since it is larger than the sum of its proper divisors (21457263).

63875121 is a wasteful number, since it uses less digits than its factorization.

63875121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41391.

The product of its digits is 10080, while the sum is 33.

The square root of 63875121 is about 7992.1912514654. The cubic root of 63875121 is about 399.7396660190.

The spelling of 63875121 in words is "sixty-three million, eight hundred seventy-five thousand, one hundred twenty-one".