65241321 has 4 divisors (see below), whose sum is σ = 86988432. Its totient is φ = 43494212.

The previous prime is 65241299. The next prime is 65241331. The reversal of 65241321 is 12314256.

65241321 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 65241321 - 2⁹ = 65240809 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65241291 and 65241300.

It is not an unprimeable number, because it can be changed into a prime (65241331) 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, 10873551 + ... + 10873556.

It is an arithmetic number, because the mean of its divisors is an integer number (21747108).

Almost surely, 2^65241321 is an apocalyptic number.

It is an amenable number.

65241321 is a deficient number, since it is larger than the sum of its proper divisors (21747111).

65241321 is a wasteful number, since it uses less digits than its factorization.

65241321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21747110.

The product of its digits is 1440, while the sum is 24.

The square root of 65241321 is about 8077.2099762232. The cubic root of 65241321 is about 402.5695436849.

Adding to 65241321 its reverse (12314256), we get a palindrome (77555577).

The spelling of 65241321 in words is "sixty-five million, two hundred forty-one thousand, three hundred twenty-one".