65104121 has 4 divisors (see below), whose sum is σ = 65888592. Its totient is φ = 64319652.

The previous prime is 65104097. The next prime is 65104133. The reversal of 65104121 is 12140156.

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 65104121 - 2¹⁸ = 64841977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65104093 and 65104102.

It is not an unprimeable number, because it can be changed into a prime (65104321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392111 + ... + 392276.

It is an arithmetic number, because the mean of its divisors is an integer number (16472148).

Almost surely, 2^65104121 is an apocalyptic number.

It is an amenable number.

65104121 is a deficient number, since it is larger than the sum of its proper divisors (784471).

65104121 is an equidigital number, since it uses as much as digits as its factorization.

65104121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784470.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 65104121 is about 8068.7124747385. The cubic root of 65104121 is about 402.2871495255.

Adding to 65104121 its reverse (12140156), we get a palindrome (77244277).

The spelling of 65104121 in words is "sixty-five million, one hundred four thousand, one hundred twenty-one".