264447121 has 4 divisors (see below), whose sum is σ = 280002852. Its totient is φ = 248891392.

The previous prime is 264447107. The next prime is 264447151. The reversal of 264447121 is 121744462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 245862400 + 18584721 = 15680^2 + 4311^2 .

It is a cyclic number.

It is not a de Polignac number, because 264447121 - 2⁷ = 264446993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264447151) 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, 7777840 + ... + 7777873.

It is an arithmetic number, because the mean of its divisors is an integer number (70000713).

Almost surely, 2^264447121 is an apocalyptic number.

It is an amenable number.

264447121 is a deficient number, since it is larger than the sum of its proper divisors (15555731).

264447121 is a wasteful number, since it uses less digits than its factorization.

264447121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15555730.

The product of its digits is 10752, while the sum is 31.

The square root of 264447121 is about 16261.8301860522. The cubic root of 264447121 is about 641.8688223300.

The spelling of 264447121 in words is "two hundred sixty-four million, four hundred forty-seven thousand, one hundred twenty-one".