64275121 has 4 divisors (see below), whose sum is σ = 66348544. Its totient is φ = 62201700.

The previous prime is 64275109. The next prime is 64275137. The reversal of 64275121 is 12157246.

64275121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64275121 - 2⁵ = 64275089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64275121.

It is not an unprimeable number, because it can be changed into a prime (64275161) 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 3 ways as a sum of consecutive naturals, for example, 1036665 + ... + 1036726.

It is an arithmetic number, because the mean of its divisors is an integer number (16587136).

Almost surely, 2^64275121 is an apocalyptic number.

It is an amenable number.

64275121 is a deficient number, since it is larger than the sum of its proper divisors (2073423).

64275121 is a wasteful number, since it uses less digits than its factorization.

64275121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073422.

The product of its digits is 3360, while the sum is 28.

The square root of 64275121 is about 8017.1766227270. The cubic root of 64275121 is about 400.5723493998.

The spelling of 64275121 in words is "sixty-four million, two hundred seventy-five thousand, one hundred twenty-one".