65000121 has 8 divisors (see below), whose sum is σ = 91228320. Its totient is φ = 41052672.

The previous prime is 65000119. The next prime is 65000137. The reversal of 65000121 is 12100056.

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

It is not a de Polignac number, because 65000121 - 2¹ = 65000119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65000121.

It is not an unprimeable number, because it can be changed into a prime (65000141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570120 + ... + 570233.

It is an arithmetic number, because the mean of its divisors is an integer number (11403540).

Almost surely, 2^65000121 is an apocalyptic number.

It is an amenable number.

65000121 is a deficient number, since it is larger than the sum of its proper divisors (26228199).

65000121 is a wasteful number, since it uses less digits than its factorization.

65000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140375.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 65000121 is about 8062.2652523965. The cubic root of 65000121 is about 402.0728253499.

Adding to 65000121 its reverse (12100056), we get a palindrome (77100177).

The spelling of 65000121 in words is "sixty-five million, one hundred twenty-one", and thus it is an aban number.